Notification settings: pick custom sounds for messages and call ringtones (#6897)

* Notification settings: pick custom sounds for messages and call ringtones (#6702)

* Feature: add notification sound settings for messages and calls

* Add sound not available banner, accessibility checks

* Fix build and Konsist convention violations

- libraries:preferences:api now uses io.element.android-compose-library
  so NotificationSound's @Immutable annotation can resolve, matching the
  pattern in libraries:matrix:api.
- Rename SoundUnavailableBannerStateProvider to
  NotificationSoundUnavailableStateProvider so the class name contains
  the parameter type as required by KonsistClassNameTest.

* Suppress LargeClass on RoomListPresenterTest

The three new sound-unavailable tests pushed the class past Detekt's
default LargeClass threshold. Matches the suppression pattern already
used on five presenter test classes under features/messages/impl/test.

* NotificationSettingsView: guard ringtone-picker launchers in inspection mode

rememberLauncherForActivityResult requires a LocalActivityResultRegistryOwner,
which Paparazzi-driven preview snapshot tests don't provide, causing
NotificationSettingsViewPreview to throw IllegalStateException for every
preview parameter. Extract the click handlers into a helper that returns a
no-op when LocalInspectionMode.current is true; the runtime path is unchanged.

* Handle unresolved notification sounds mid session

* Quality checks, refactor mid session error ui

* Suppress detekt LargeClass on NotificationSettingsPresenterTest

* Remove notification sound resilience layer, replace with file copy

* Reselect element sound option, code cleanup

* Add element fade notification sound option

* Fix new file headers

* Revert to flowOf(Unit) for announcement service

* Add ringtone picker dialog to match message selector

* Update strings in conjunction with ios

* Update test to reflect new string

* Sync strings.

* Update screenshots

* Fix test

* Remove not properly located translations.
This will be fixed in the next String sync.

* Fix test on CI

---------

Co-authored-by: Jenna Vassar <jenna.vassar@toptal.com>
Co-authored-by: ElementBot <android@element.io>

app/src/main/res/xml/file_providers.xml

@@ -7,4 +7,5 @@
   -->
 <paths>
     <cache-path name="cache" path="." />
+    <files-path name="notification_sounds" path="notification_sounds/" />
 </paths>

features/announcement/impl/src/main/kotlin/io/element/android/features/announcement/impl/store/DefaultAnnouncementStore.kt

@@ -35,8 +35,9 @@ class DefaultAnnouncementStore(
 
     override fun announcementStatusFlow(announcement: Announcement): Flow<AnnouncementStatus> {
         val key = announcement.toKey()
-        // Announcement.Fullscreen.Space is disabled, consider it's shown
+        // Default-status convention: Shown for one-shot intro/feature announcements that should
-        // For NewNotificationSound, a migration will set it to Show on application upgrade (see AppMigration08)
+        // NOT replay on first launch (Fullscreen.Space is disabled; NewNotificationSound is opted
+        // in by AppMigration08).
         val defaultStatus = when (announcement) {
             Announcement.Fullscreen.Space -> AnnouncementStatus.Shown
             Announcement.NewNotificationSound -> AnnouncementStatus.Shown

features/home/impl/src/main/kotlin/io/element/android/features/home/impl/components/RoomListContentView.kt

@@ -245,15 +245,20 @@ private fun RoomsViewList(
                     )
                 }
             }
-            SecurityBannerState.None -> if (state.fullScreenIntentPermissionsState.shouldDisplayBanner) {
+            // Banner precedence (top-to-bottom): full-screen-intent > battery-optimization >
+            // new-notification-sound > sound-unavailable. At most one renders at a time.
+            SecurityBannerState.None -> when {
+                state.fullScreenIntentPermissionsState.shouldDisplayBanner -> {
                     item {
                         FullScreenIntentPermissionBanner(state = state.fullScreenIntentPermissionsState)
                     }
-            } else if (state.batteryOptimizationState.shouldDisplayBanner) {
+                }
+                state.batteryOptimizationState.shouldDisplayBanner -> {
                     item {
                         BatteryOptimizationBanner(state = state.batteryOptimizationState)
                     }
-            } else if (state.showNewNotificationSoundBanner) {
+                }
+                state.showNewNotificationSoundBanner -> {
                     item {
                         NewNotificationSoundBanner(
                             onDismissClick = { eventSink(RoomListEvent.DismissNewNotificationSoundBanner) },
@@ -261,6 +266,7 @@ private fun RoomsViewList(
                     }
                 }
             }
+        }
 
         // Note: do not use a key for the LazyColumn, or the scroll will not behave as expected if a room
         // is moved to the top of the list.

features/home/impl/src/test/kotlin/io/element/android/features/home/impl/roomlist/RoomListPresenterTest.kt

@@ -89,6 +89,7 @@ import org.junit.Rule
 import org.junit.Test
 import kotlin.time.Duration.Companion.seconds
 
+@Suppress("LargeClass")
 class RoomListPresenterTest {
     @get:Rule
     val warmUpRule = WarmUpRule()

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSettingsEvents.kt

@@ -8,6 +8,8 @@
 
 package io.element.android.features.preferences.impl.notifications
 
+import io.element.android.libraries.preferences.api.store.NotificationSound
+
 sealed interface NotificationSettingsEvents {
     data object RefreshSystemNotificationsEnabled : NotificationSettingsEvents
     data class SetNotificationsEnabled(val enabled: Boolean) : NotificationSettingsEvents
@@ -20,4 +22,16 @@ sealed interface NotificationSettingsEvents {
     data object ChangePushProvider : NotificationSettingsEvents
     data object CancelChangePushProvider : NotificationSettingsEvents
     data class SetPushProvider(val index: Int) : NotificationSettingsEvents
+    data class SetMessageSound(val sound: NotificationSound) : NotificationSettingsEvents
+    data class SetCallRingtone(val sound: NotificationSound) : NotificationSettingsEvents
+    data object DismissMessageSoundCopyError : NotificationSettingsEvents
+    data object DismissCallRingtoneCopyError : NotificationSettingsEvents
+    data object ShowMessageSoundDialog : NotificationSettingsEvents
+    data object DismissMessageSoundDialog : NotificationSettingsEvents
+    data class SelectMessageSoundPreset(val sound: NotificationSound) : NotificationSettingsEvents
+    data object LaunchMessageSoundPicker : NotificationSettingsEvents
+    data object ShowCallRingtoneDialog : NotificationSettingsEvents
+    data object DismissCallRingtoneDialog : NotificationSettingsEvents
+    data class SelectCallRingtonePreset(val sound: NotificationSound) : NotificationSettingsEvents
+    data object LaunchCallRingtonePicker : NotificationSettingsEvents
 }

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSettingsPresenter.kt

@@ -16,10 +16,12 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.key
 import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.produceState
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import dev.zacsweers.metro.Inject
+import io.element.android.features.preferences.impl.R
 import io.element.android.libraries.architecture.AsyncAction
 import io.element.android.libraries.architecture.AsyncData
 import io.element.android.libraries.architecture.Presenter
@@ -30,18 +32,30 @@ import io.element.android.libraries.fullscreenintent.api.FullScreenIntentPermiss
 import io.element.android.libraries.matrix.api.MatrixClient
 import io.element.android.libraries.matrix.api.notificationsettings.NotificationSettingsService
 import io.element.android.libraries.matrix.api.room.RoomNotificationMode
+import io.element.android.libraries.preferences.api.store.AppPreferencesStore
+import io.element.android.libraries.preferences.api.store.NotificationSound
 import io.element.android.libraries.push.api.PushService
+import io.element.android.libraries.push.api.notifications.NotificationSoundUpdater
+import io.element.android.libraries.push.api.notifications.SoundDisplayNameResolver
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier.CopyResult
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier.SoundSlot
 import io.element.android.libraries.pushproviders.api.Distributor
 import io.element.android.libraries.pushproviders.api.PushProvider
 import io.element.android.libraries.pushstore.api.UserPushStore
 import io.element.android.libraries.pushstore.api.UserPushStoreFactory
+import io.element.android.services.toolbox.api.strings.StringProvider
 import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.FlowPreview
 import kotlinx.coroutines.flow.debounce
+import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import timber.log.Timber
 import kotlin.time.Duration.Companion.seconds
 
 @Inject
@@ -52,9 +66,22 @@ class NotificationSettingsPresenter(
     private val pushService: PushService,
     private val systemNotificationsEnabledProvider: SystemNotificationsEnabledProvider,
     private val fullScreenIntentPermissionsPresenter: Presenter<FullScreenIntentPermissionsState>,
+    private val appPreferencesStore: AppPreferencesStore,
+    private val notificationSoundUpdater: NotificationSoundUpdater,
+    private val notificationSoundCopier: NotificationSoundCopier,
+    private val soundDisplayNameResolver: SoundDisplayNameResolver,
+    private val stringProvider: StringProvider,
     @SessionCoroutineScope
     private val sessionCoroutineScope: CoroutineScope,
 ) : Presenter<NotificationSettingsState> {
+    // Serializes the pick → copy → persist → recreate pipeline per slot. The copier already locks
+    // its `<slot>.tmp` file, but the persist+recreate window outside the copier is unprotected;
+    // without this, two rapid picks (e.g. an automation or accessibility service firing back-to-
+    // back events) could interleave and leave the channel id pointing at the older version while
+    // DataStore reflects the newer one.
+    private val messageSoundLock = Mutex()
+    private val callRingtoneLock = Mutex()
+
     @Composable
     override fun present(): NotificationSettingsState {
         val userPushStore = remember { userPushStoreFactory.getOrCreate(matrixClient.sessionId) }
@@ -109,6 +136,42 @@ class NotificationSettingsPresenter(
 
         var showChangePushProviderDialog by remember { mutableStateOf(false) }
 
+        val messageSound by remember { appPreferencesStore.getMessageSoundFlow() }.collectAsState(initial = NotificationSound.SystemDefault)
+        val callRingtone by remember { appPreferencesStore.getCallRingtoneFlow() }.collectAsState(initial = NotificationSound.SystemDefault)
+        val persistedMessageSoundTitle by remember { appPreferencesStore.getMessageSoundDisplayNameFlow() }.collectAsState(initial = null)
+        val persistedCallRingtoneTitle by remember { appPreferencesStore.getCallRingtoneDisplayNameFlow() }.collectAsState(initial = null)
+        val defaultLabel = stringProvider.getString(R.string.screen_notification_settings_sound_system_default)
+
+        // One-shot classification for the call-ringtone slot only: users who customised the
+        // channel via Android system settings before the in-app picker existed (channel version 0,
+        // persisted SystemDefault) get reflected here. The message-sound equivalent is handled by
+        // the eager migration in DefaultNotificationChannels.createNotificationChannels(). Cleared
+        // on any in-app pick so a stale read can't bleed into the row after the recreate.
+        var legacyCallRingtone by remember { mutableStateOf<NotificationSound?>(null) }
+        LaunchedEffect(Unit) {
+            val config = appPreferencesStore.getNotificationSoundChannelConfig()
+            if (config.callRingtone == NotificationSound.SystemDefault && config.callRingtoneVersion == 0) {
+                legacyCallRingtone = notificationSoundUpdater.readRingingCallChannelSound()
+            }
+        }
+
+        val effectiveMessageSound = messageSound
+        val effectiveCallRingtone = if (callRingtone == NotificationSound.SystemDefault) {
+            legacyCallRingtone ?: callRingtone
+        } else {
+            callRingtone
+        }
+
+        val messageSoundDisplayName = probeSoundDisplayName(effectiveMessageSound, persistedMessageSoundTitle, defaultLabel)
+        val callRingtoneDisplayName = probeSoundDisplayName(effectiveCallRingtone, persistedCallRingtoneTitle, defaultLabel)
+
+        var messageSoundCopyError by remember { mutableStateOf(false) }
+        var callRingtoneCopyError by remember { mutableStateOf(false) }
+        var showMessageSoundDialog by remember { mutableStateOf(false) }
+        var pendingMessageSoundPickerLaunch by remember { mutableIntStateOf(0) }
+        var showCallRingtoneDialog by remember { mutableStateOf(false) }
+        var pendingCallRingtonePickerLaunch by remember { mutableIntStateOf(0) }
+
         fun CoroutineScope.changePushProvider(
             data: Pair<PushProvider, Distributor>?
         ) = launch {
@@ -157,6 +220,62 @@ class NotificationSettingsPresenter(
                 NotificationSettingsEvents.ChangePushProvider -> showChangePushProviderDialog = true
                 NotificationSettingsEvents.CancelChangePushProvider -> showChangePushProviderDialog = false
                 is NotificationSettingsEvents.SetPushProvider -> localCoroutineScope.changePushProvider(distributors.getOrNull(event.index))
+                is NotificationSettingsEvents.SetMessageSound -> applyMessageSound(
+                    sound = event.sound,
+                    sessionCoroutineScope = sessionCoroutineScope,
+                    onCopyError = { messageSoundCopyError = true },
+                    onCopySuccess = { messageSoundCopyError = false },
+                    onChannelFailure = { failure -> changeNotificationSettingAction.value = AsyncAction.Failure(failure) },
+                )
+                is NotificationSettingsEvents.SelectMessageSoundPreset -> {
+                    showMessageSoundDialog = false
+                    applyMessageSound(
+                        sound = event.sound,
+                        sessionCoroutineScope = sessionCoroutineScope,
+                        onCopyError = { messageSoundCopyError = true },
+                        onCopySuccess = { messageSoundCopyError = false },
+                        onChannelFailure = { failure -> changeNotificationSettingAction.value = AsyncAction.Failure(failure) },
+                    )
+                }
+                NotificationSettingsEvents.ShowMessageSoundDialog -> showMessageSoundDialog = true
+                NotificationSettingsEvents.DismissMessageSoundDialog -> showMessageSoundDialog = false
+                NotificationSettingsEvents.LaunchMessageSoundPicker -> {
+                    showMessageSoundDialog = false
+                    pendingMessageSoundPickerLaunch++
+                }
+                is NotificationSettingsEvents.SetCallRingtone -> {
+                    legacyCallRingtone = null
+                    applyCallRingtone(
+                        sound = event.sound,
+                        sessionCoroutineScope = sessionCoroutineScope,
+                        onCopyError = { callRingtoneCopyError = true },
+                        onCopySuccess = { callRingtoneCopyError = false },
+                        onChannelFailure = { failure -> changeNotificationSettingAction.value = AsyncAction.Failure(failure) },
+                    )
+                }
+                is NotificationSettingsEvents.SelectCallRingtonePreset -> {
+                    showCallRingtoneDialog = false
+                    legacyCallRingtone = null
+                    applyCallRingtone(
+                        sound = event.sound,
+                        sessionCoroutineScope = sessionCoroutineScope,
+                        onCopyError = { callRingtoneCopyError = true },
+                        onCopySuccess = { callRingtoneCopyError = false },
+                        onChannelFailure = { failure -> changeNotificationSettingAction.value = AsyncAction.Failure(failure) },
+                    )
+                }
+                NotificationSettingsEvents.ShowCallRingtoneDialog -> showCallRingtoneDialog = true
+                NotificationSettingsEvents.DismissCallRingtoneDialog -> showCallRingtoneDialog = false
+                NotificationSettingsEvents.LaunchCallRingtonePicker -> {
+                    showCallRingtoneDialog = false
+                    pendingCallRingtonePickerLaunch++
+                }
+                NotificationSettingsEvents.DismissMessageSoundCopyError -> {
+                    messageSoundCopyError = false
+                }
+                NotificationSettingsEvents.DismissCallRingtoneCopyError -> {
+                    callRingtoneCopyError = false
+                }
             }
         }
 
@@ -171,10 +290,140 @@ class NotificationSettingsPresenter(
             availablePushDistributors = availableDistributors,
             showChangePushProviderDialog = showChangePushProviderDialog,
             fullScreenIntentPermissionsState = key(refreshFullScreenIntentSettings) { fullScreenIntentPermissionsPresenter.present() },
+            messageSound = NotificationSettingsState.SoundChannelUiState(
+                sound = effectiveMessageSound,
+                displayName = messageSoundDisplayName,
+                copyError = messageSoundCopyError,
+            ),
+            callRingtone = NotificationSettingsState.SoundChannelUiState(
+                sound = effectiveCallRingtone,
+                displayName = callRingtoneDisplayName,
+                copyError = callRingtoneCopyError,
+            ),
+            showMessageSoundDialog = showMessageSoundDialog,
+            showCallRingtoneDialog = showCallRingtoneDialog,
+            pendingMessageSoundPickerLaunch = pendingMessageSoundPickerLaunch,
+            pendingCallRingtonePickerLaunch = pendingCallRingtonePickerLaunch,
             eventSink = ::handleEvent,
         )
     }
 
+    private fun applyMessageSound(
+        sound: NotificationSound,
+        sessionCoroutineScope: CoroutineScope,
+        onCopyError: () -> Unit,
+        onCopySuccess: () -> Unit,
+        onChannelFailure: (Throwable) -> Unit,
+    ) {
+        sessionCoroutineScope.launch {
+            messageSoundLock.withLock {
+                // Re-selecting the current non-Custom sound is a no-op: skip the channel churn
+                // (delete + create round-trips through system_server) and the version bump. Custom
+                // still falls through so the copier refreshes the file from the (possibly updated)
+                // source URI.
+                if (sound !is NotificationSound.Custom && appPreferencesStore.getMessageSoundFlow().first() == sound) {
+                    onCopySuccess()
+                    return@withLock
+                }
+                val resolved = resolvePickedSound(sound, SoundSlot.Message, onCopyError) ?: return@withLock
+                runCatchingExceptions {
+                    onCopySuccess()
+                    val newVersion = appPreferencesStore.setMessageSoundAndIncrementVersion(resolved.first, resolved.second)
+                    notificationSoundUpdater.recreateNoisyChannel(resolved.first, newVersion)
+                    // Non-Custom picks bypass the copier, so they don't sweep the prior Custom file
+                    // inline. Drop it now that the new channel no longer references it.
+                    if (resolved.first !is NotificationSound.Custom) {
+                        notificationSoundCopier.deleteStoredSoundFor(SoundSlot.Message)
+                    }
+                }.onFailure(onChannelFailure)
+            }
+        }
+    }
+
+    private fun applyCallRingtone(
+        sound: NotificationSound,
+        sessionCoroutineScope: CoroutineScope,
+        onCopyError: () -> Unit,
+        onCopySuccess: () -> Unit,
+        onChannelFailure: (Throwable) -> Unit,
+    ) {
+        sessionCoroutineScope.launch {
+            callRingtoneLock.withLock {
+                if (sound !is NotificationSound.Custom && appPreferencesStore.getCallRingtoneFlow().first() == sound) {
+                    onCopySuccess()
+                    return@withLock
+                }
+                val resolved = resolvePickedSound(sound, SoundSlot.Call, onCopyError) ?: return@withLock
+                runCatchingExceptions {
+                    onCopySuccess()
+                    val newVersion = appPreferencesStore.setCallRingtoneAndIncrementVersion(resolved.first, resolved.second)
+                    notificationSoundUpdater.recreateRingingCallChannel(resolved.first, newVersion)
+                    if (resolved.first !is NotificationSound.Custom) {
+                        notificationSoundCopier.deleteStoredSoundFor(SoundSlot.Call)
+                    }
+                }.onFailure(onChannelFailure)
+            }
+        }
+    }
+
+    /**
+     * Custom rows prefer [persistedTitle] (captured at copy time), fall back to a live resolver
+     * probe for legacy data, then to a localised "Custom" — never to [defaultLabel], so an
+     * unresolvable Custom isn't mislabelled as Default.
+     */
+    @Composable
+    private fun probeSoundDisplayName(
+        sound: NotificationSound,
+        persistedTitle: String?,
+        defaultLabel: String,
+    ): String = when (sound) {
+        NotificationSound.SystemDefault -> defaultLabel
+        NotificationSound.ElementDefault -> stringProvider.getString(R.string.screen_notification_settings_sound_element_default)
+        NotificationSound.ElementFade -> stringProvider.getString(R.string.screen_notification_settings_sound_element_fade)
+        NotificationSound.Silent -> stringProvider.getString(R.string.screen_notification_settings_sound_silent)
+        is NotificationSound.Custom -> {
+            val nonBlankPersisted = persistedTitle?.takeUnless { it.isBlank() }
+            if (nonBlankPersisted != null) {
+                nonBlankPersisted
+            } else {
+                val customFallback = stringProvider.getString(R.string.screen_notification_settings_sound_custom_fallback)
+                val resolved by produceState(initialValue = "", sound.uri) {
+                    val title = soundDisplayNameResolver.resolveCustomSoundTitle(sound.uri)
+                    value = title?.takeUnless { it.isBlank() } ?: customFallback
+                }
+                resolved
+            }
+        }
+    }
+
+    /**
+     * For a Custom pick, copies into app-private storage and returns (FileProvider URI, title).
+     * Returns null on copy failure after invoking [onCopyError]. Pass-through for SystemDefault /
+     * Silent.
+     */
+    private suspend fun resolvePickedSound(
+        requested: NotificationSound,
+        slot: SoundSlot,
+        onCopyError: () -> Unit,
+    ): Pair<NotificationSound, String?>? {
+        if (requested !is NotificationSound.Custom) return requested to null
+        return when (val result = notificationSoundCopier.copyToAppFiles(requested.uri, slot)) {
+            is CopyResult.Success -> NotificationSound.Custom(result.fileProviderUriString) to result.displayName
+            is CopyResult.Failure -> {
+                Timber.w(result.cause, "Notification sound copy failed for slot=%s", slot)
+                onCopyError()
+                null
+            }
+            CopyResult.UnplayableSource,
+            CopyResult.UnplayableCopy,
+            CopyResult.FileTooLarge -> {
+                Timber.w("Notification sound rejected: result=%s slot=%s", result::class.simpleName, slot)
+                onCopyError()
+                null
+            }
+        }
+    }
+
     @OptIn(FlowPreview::class)
     private fun CoroutineScope.observeNotificationSettings(
         target: MutableState<NotificationSettingsState.MatrixSettings>,

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSettingsState.kt

@@ -12,6 +12,7 @@ import io.element.android.libraries.architecture.AsyncAction
 import io.element.android.libraries.architecture.AsyncData
 import io.element.android.libraries.fullscreenintent.api.FullScreenIntentPermissionsState
 import io.element.android.libraries.matrix.api.room.RoomNotificationMode
+import io.element.android.libraries.preferences.api.store.NotificationSound
 import io.element.android.libraries.pushproviders.api.Distributor
 import kotlinx.collections.immutable.ImmutableList
 
@@ -23,6 +24,24 @@ data class NotificationSettingsState(
     val availablePushDistributors: ImmutableList<Distributor>,
     val showChangePushProviderDialog: Boolean,
     val fullScreenIntentPermissionsState: FullScreenIntentPermissionsState,
+    val messageSound: SoundChannelUiState,
+    val callRingtone: SoundChannelUiState,
+    val showMessageSoundDialog: Boolean,
+    val showCallRingtoneDialog: Boolean,
+    /**
+     * One-shot trigger for launching the system ringtone picker. Each
+     * [NotificationSettingsEvents.LaunchMessageSoundPicker] increments the value;
+     * the view watches this in `LaunchedEffect` and calls the launcher whenever it goes above 0.
+     * **Always start at 0** in initial state, providers, and previews — a non-zero seed will
+     * auto-open the picker on screen entry.
+     */
+    val pendingMessageSoundPickerLaunch: Int,
+    /**
+     * One-shot trigger for launching the system ringtone picker from the call ringtone dialog.
+     * Same contract as [pendingMessageSoundPickerLaunch]: **always start at 0**, or the picker
+     * auto-opens on screen entry.
+     */
+    val pendingCallRingtonePickerLaunch: Int,
     val eventSink: (NotificationSettingsEvents) -> Unit,
 ) {
     sealed interface MatrixSettings {
@@ -45,6 +64,16 @@ data class NotificationSettingsState(
         val appNotificationsEnabled: Boolean,
     )
 
+    /**
+     * UI state for one of the two sound rows (message sound, call ringtone). [copyError] is set
+     * when the last pick failed to copy into app-private storage; the persisted choice stays put.
+     */
+    data class SoundChannelUiState(
+        val sound: NotificationSound,
+        val displayName: String,
+        val copyError: Boolean,
+    )
+
     /**
      * Whether the advanced settings should be shown.
      * This is true if the current push distributor is in a failure state or if there are multiple push distributors available.

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSettingsStateProvider.kt

@@ -14,6 +14,7 @@ import io.element.android.libraries.architecture.AsyncData
 import io.element.android.libraries.fullscreenintent.api.FullScreenIntentPermissionsState
 import io.element.android.libraries.fullscreenintent.api.aFullScreenIntentPermissionsState
 import io.element.android.libraries.matrix.api.room.RoomNotificationMode
+import io.element.android.libraries.preferences.api.store.NotificationSound
 import io.element.android.libraries.pushproviders.api.Distributor
 import kotlinx.collections.immutable.persistentListOf
 import kotlinx.collections.immutable.toImmutableList
@@ -45,6 +46,34 @@ open class NotificationSettingsStateProvider : PreviewParameterProvider<Notifica
             aInvalidNotificationSettingsState(fixFailed = true),
             aValidNotificationSettingsState(fullScreenIntentPermissionsState = aFullScreenIntentPermissionsState(permissionGranted = false)),
             aValidNotificationSettingsState(appNotificationEnabled = false),
+            aValidNotificationSettingsState(
+                // Sentinel URIs — previews shouldn't depend on the host's content provider.
+                messageSound = NotificationSound.Custom("preview://message-sound"),
+                messageSoundDisplayName = "Pixel notification",
+                callRingtone = NotificationSound.Custom("preview://call-ringtone"),
+                callRingtoneDisplayName = "Pixel ringtone",
+            ),
+            aValidNotificationSettingsState(
+                messageSound = NotificationSound.Silent,
+                messageSoundDisplayName = "Silent",
+                callRingtone = NotificationSound.Silent,
+                callRingtoneDisplayName = "Silent",
+            ),
+            aValidNotificationSettingsState(
+                messageSoundCopyError = true,
+                callRingtoneCopyError = false,
+            ),
+            aValidNotificationSettingsState(
+                messageSound = NotificationSound.ElementDefault,
+                messageSoundDisplayName = "Element default",
+            ),
+            aValidNotificationSettingsState(showMessageSoundDialog = true),
+            aValidNotificationSettingsState(showCallRingtoneDialog = true),
+            aValidNotificationSettingsState(
+                callRingtone = NotificationSound.Custom("preview://call-ringtone"),
+                callRingtoneDisplayName = "Pixel ringtone",
+                showCallRingtoneDialog = true,
+            ),
         )
 }
 
@@ -62,6 +91,16 @@ fun aValidNotificationSettingsState(
     ),
     showChangePushProviderDialog: Boolean = false,
     fullScreenIntentPermissionsState: FullScreenIntentPermissionsState = aFullScreenIntentPermissionsState(),
+    messageSound: NotificationSound = NotificationSound.SystemDefault,
+    messageSoundDisplayName: String = "Element default",
+    messageSoundCopyError: Boolean = false,
+    callRingtone: NotificationSound = NotificationSound.SystemDefault,
+    callRingtoneDisplayName: String = "System default",
+    callRingtoneCopyError: Boolean = false,
+    showMessageSoundDialog: Boolean = false,
+    showCallRingtoneDialog: Boolean = false,
+    pendingMessageSoundPickerLaunch: Int = 0,
+    pendingCallRingtonePickerLaunch: Int = 0,
     eventSink: (NotificationSettingsEvents) -> Unit = {},
 ) = NotificationSettingsState(
     matrixSettings = NotificationSettingsState.MatrixSettings.Valid(
@@ -80,6 +119,20 @@ fun aValidNotificationSettingsState(
     availablePushDistributors = availablePushDistributors.toImmutableList(),
     showChangePushProviderDialog = showChangePushProviderDialog,
     fullScreenIntentPermissionsState = fullScreenIntentPermissionsState,
+    messageSound = NotificationSettingsState.SoundChannelUiState(
+        sound = messageSound,
+        displayName = messageSoundDisplayName,
+        copyError = messageSoundCopyError,
+    ),
+    callRingtone = NotificationSettingsState.SoundChannelUiState(
+        sound = callRingtone,
+        displayName = callRingtoneDisplayName,
+        copyError = callRingtoneCopyError,
+    ),
+    showMessageSoundDialog = showMessageSoundDialog,
+    showCallRingtoneDialog = showCallRingtoneDialog,
+    pendingMessageSoundPickerLaunch = pendingMessageSoundPickerLaunch,
+    pendingCallRingtonePickerLaunch = pendingCallRingtonePickerLaunch,
     eventSink = eventSink,
 )
 
@@ -99,6 +152,20 @@ fun aInvalidNotificationSettingsState(
     availablePushDistributors = persistentListOf(),
     showChangePushProviderDialog = false,
     fullScreenIntentPermissionsState = aFullScreenIntentPermissionsState(),
+    messageSound = NotificationSettingsState.SoundChannelUiState(
+        sound = NotificationSound.SystemDefault,
+        displayName = "System default",
+        copyError = false,
+    ),
+    callRingtone = NotificationSettingsState.SoundChannelUiState(
+        sound = NotificationSound.SystemDefault,
+        displayName = "System default",
+        copyError = false,
+    ),
+    showMessageSoundDialog = false,
+    showCallRingtoneDialog = false,
+    pendingMessageSoundPickerLaunch = 0,
+    pendingCallRingtonePickerLaunch = 0,
     eventSink = eventSink,
 )
 

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSettingsView.kt

@@ -8,16 +8,29 @@
 
 package io.element.android.features.preferences.impl.notifications
 
+import android.app.Activity
+import android.media.RingtoneManager
+import android.net.Uri
+import android.provider.Settings
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.progressSemantics
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalInspectionMode
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.LiveRegionMode
+import androidx.compose.ui.semantics.liveRegion
+import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.Lifecycle
+import io.element.android.compound.theme.ElementTheme
 import io.element.android.compound.tokens.generated.CompoundIcons
 import io.element.android.features.preferences.impl.R
 import io.element.android.libraries.androidutils.system.startNotificationSettingsIntent
@@ -35,13 +48,17 @@ import io.element.android.libraries.designsystem.components.preferences.Preferen
 import io.element.android.libraries.designsystem.preview.ElementPreview
 import io.element.android.libraries.designsystem.preview.PreviewsDayNight
 import io.element.android.libraries.designsystem.theme.components.CircularProgressIndicator
+import io.element.android.libraries.designsystem.theme.components.Icon
+import io.element.android.libraries.designsystem.theme.components.IconButton
 import io.element.android.libraries.designsystem.theme.components.IconSource
 import io.element.android.libraries.designsystem.theme.components.ListItem
 import io.element.android.libraries.designsystem.theme.components.Text
 import io.element.android.libraries.designsystem.utils.OnLifecycleEvent
 import io.element.android.libraries.fullscreenintent.api.FullScreenIntentPermissionsEvents
 import io.element.android.libraries.matrix.api.room.RoomNotificationMode
+import io.element.android.libraries.preferences.api.store.NotificationSound
 import io.element.android.libraries.ui.strings.CommonStrings
+import kotlinx.collections.immutable.persistentListOf
 import kotlinx.collections.immutable.toImmutableList
 
 /**
@@ -182,6 +199,7 @@ private fun NotificationSettingsContentView(
                 onCheckedChange = onMentionNotificationsChange
             )
         }
+        SoundsPreferenceCategory(state = state)
         PreferenceCategory(title = stringResource(id = R.string.screen_notification_settings_additional_settings_section_title)) {
             // TODO We are removing the call notification toggle until support for call notifications has been added
 //                PreferenceSwitch(
@@ -261,6 +279,189 @@ private fun NotificationSettingsContentView(
     }
 }
 
+@Composable
+private fun SoundsPreferenceCategory(state: NotificationSettingsState) {
+    PreferenceCategory(title = stringResource(id = R.string.screen_notification_settings_sound_section_title)) {
+        val launchMessageSoundPicker = rememberSoundPickerOnClick(
+            type = RingtoneManager.TYPE_NOTIFICATION,
+            current = state.messageSound.sound,
+            defaultUri = Settings.System.DEFAULT_NOTIFICATION_URI,
+            onSoundPicked = { sound -> state.eventSink(NotificationSettingsEvents.SetMessageSound(sound)) },
+        )
+        // Skip the initial 0 emission so the picker doesn't auto-open on screen entry; only
+        // increments fired by LaunchMessageSoundPicker should launch it.
+        LaunchedEffect(state.pendingMessageSoundPickerLaunch) {
+            if (state.pendingMessageSoundPickerLaunch > 0) {
+                launchMessageSoundPicker()
+            }
+        }
+        ListItem(
+            headlineContent = { Text(stringResource(id = R.string.screen_notification_settings_message_sound_label)) },
+            supportingContent = { Text(state.messageSound.displayName) },
+            onClick = { state.eventSink(NotificationSettingsEvents.ShowMessageSoundDialog) },
+        )
+        if (state.messageSound.copyError) {
+            SoundCopyErrorRow(
+                onDismissClick = { state.eventSink(NotificationSettingsEvents.DismissMessageSoundCopyError) },
+            )
+        }
+        if (state.showMessageSoundDialog) {
+            MessageSoundDialog(state)
+        }
+
+        val launchCallRingtonePicker = rememberSoundPickerOnClick(
+            type = RingtoneManager.TYPE_RINGTONE,
+            current = state.callRingtone.sound,
+            defaultUri = Settings.System.DEFAULT_RINGTONE_URI,
+            onSoundPicked = { sound -> state.eventSink(NotificationSettingsEvents.SetCallRingtone(sound)) },
+        )
+        // Skip the initial 0 emission so the picker doesn't auto-open on screen entry; only
+        // increments fired by LaunchCallRingtonePicker should launch it.
+        LaunchedEffect(state.pendingCallRingtonePickerLaunch) {
+            if (state.pendingCallRingtonePickerLaunch > 0) {
+                launchCallRingtonePicker()
+            }
+        }
+        ListItem(
+            headlineContent = { Text(stringResource(id = R.string.screen_notification_settings_call_ringtone_label)) },
+            supportingContent = { Text(state.callRingtone.displayName) },
+            onClick = { state.eventSink(NotificationSettingsEvents.ShowCallRingtoneDialog) },
+        )
+        if (state.callRingtone.copyError) {
+            SoundCopyErrorRow(
+                onDismissClick = { state.eventSink(NotificationSettingsEvents.DismissCallRingtoneCopyError) },
+            )
+        }
+        if (state.showCallRingtoneDialog) {
+            CallRingtoneDialog(state)
+        }
+    }
+}
+
+@Composable
+private fun MessageSoundDialog(state: NotificationSettingsState) {
+    val initialSelection = when (state.messageSound.sound) {
+        NotificationSound.ElementDefault -> 0
+        NotificationSound.ElementFade -> 1
+        NotificationSound.SystemDefault -> 2
+        else -> null
+    }
+    // When the user is on Custom or Silent, no preset row is selected — surface the current
+    // sound as a subtitle so screen readers (and sighted users) still have state context.
+    val subtitle = if (initialSelection == null) {
+        stringResource(
+            id = R.string.screen_notification_settings_message_sound_dialog_current_subtitle,
+            state.messageSound.displayName,
+        )
+    } else {
+        null
+    }
+    SingleSelectionDialog(
+        title = stringResource(id = R.string.screen_notification_settings_message_sound_dialog_title),
+        subtitle = subtitle,
+        options = persistentListOf(
+            ListOption(title = stringResource(id = R.string.screen_notification_settings_sound_element_default)),
+            ListOption(title = stringResource(id = R.string.screen_notification_settings_sound_element_fade)),
+            ListOption(title = stringResource(id = R.string.screen_notification_settings_sound_system_default)),
+            ListOption(title = stringResource(id = R.string.screen_notification_settings_message_sound_dialog_choose_other)),
+        ),
+        initialSelection = initialSelection,
+        onSelectOption = { index ->
+            when (index) {
+                0 -> state.eventSink(NotificationSettingsEvents.SelectMessageSoundPreset(NotificationSound.ElementDefault))
+                1 -> state.eventSink(NotificationSettingsEvents.SelectMessageSoundPreset(NotificationSound.ElementFade))
+                2 -> state.eventSink(NotificationSettingsEvents.SelectMessageSoundPreset(NotificationSound.SystemDefault))
+                else -> state.eventSink(NotificationSettingsEvents.LaunchMessageSoundPicker)
+            }
+        },
+        onDismissRequest = { state.eventSink(NotificationSettingsEvents.DismissMessageSoundDialog) },
+    )
+}
+
+@Composable
+private fun CallRingtoneDialog(state: NotificationSettingsState) {
+    val initialSelection = when (state.callRingtone.sound) {
+        NotificationSound.SystemDefault -> 0
+        else -> null
+    }
+    val subtitle = if (initialSelection == null) {
+        stringResource(
+            id = R.string.screen_notification_settings_message_sound_dialog_current_subtitle,
+            state.callRingtone.displayName,
+        )
+    } else {
+        null
+    }
+    SingleSelectionDialog(
+        title = stringResource(id = R.string.screen_notification_settings_call_ringtone_label),
+        subtitle = subtitle,
+        options = persistentListOf(
+            ListOption(title = stringResource(id = R.string.screen_notification_settings_sound_system_default)),
+            ListOption(title = stringResource(id = R.string.screen_notification_settings_message_sound_dialog_choose_other)),
+        ),
+        initialSelection = initialSelection,
+        onSelectOption = { index ->
+            when (index) {
+                0 -> state.eventSink(NotificationSettingsEvents.SelectCallRingtonePreset(NotificationSound.SystemDefault))
+                else -> state.eventSink(NotificationSettingsEvents.LaunchCallRingtonePicker)
+            }
+        },
+        onDismissRequest = { state.eventSink(NotificationSettingsEvents.DismissCallRingtoneDialog) },
+    )
+}
+
+@Composable
+private fun SoundCopyErrorRow(
+    onDismissClick: () -> Unit,
+) {
+    ListItem(
+        modifier = Modifier
+            .background(ElementTheme.colors.bgSubtleSecondary)
+            .semantics { liveRegion = LiveRegionMode.Polite },
+        headlineContent = {
+            Text(
+                text = stringResource(R.string.screen_notification_settings_sound_set_sound_error_title),
+                style = ElementTheme.typography.fontBodyMdRegular,
+                color = ElementTheme.colors.textSecondary,
+            )
+        },
+        trailingContent = ListItemContent.Custom { _ ->
+            IconButton(onClick = onDismissClick) {
+                Icon(
+                    imageVector = CompoundIcons.Close(),
+                    contentDescription = stringResource(R.string.screen_notification_settings_sound_set_sound_error_dismiss_a11y),
+                )
+            }
+        },
+    )
+}
+
+@Composable
+private fun rememberSoundPickerOnClick(
+    type: Int,
+    current: NotificationSound,
+    defaultUri: Uri,
+    onSoundPicked: (NotificationSound) -> Unit,
+): () -> Unit {
+    // Paparazzi previews don't provide a LocalActivityResultRegistryOwner, which
+    // rememberLauncherForActivityResult requires. Skip the launcher in inspection mode and
+    // return a no-op click handler — previews don't need to launch the picker.
+    if (LocalInspectionMode.current) return {}
+    val launcher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.StartActivityForResult(),
+    ) { result ->
+        if (result.resultCode == Activity.RESULT_OK) {
+            val sound = result.data?.toPickedNotificationSound(defaultUri)
+            if (sound != null) {
+                onSoundPicked(sound)
+            }
+        }
+    }
+    return {
+        launcher.launch(buildRingtonePickerIntent(type = type, current = current, defaultUri = defaultUri))
+    }
+}
+
 @Composable
 private fun getTitleForRoomNotificationMode(mode: RoomNotificationMode?) =
     when (mode) {

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSoundPicker.kt

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.features.preferences.impl.notifications
+
+import android.content.Intent
+import android.media.RingtoneManager
+import android.net.Uri
+import androidx.core.content.IntentCompat
+import androidx.core.net.toUri
+import io.element.android.libraries.preferences.api.store.NotificationSound
+
+/**
+ * Builds an `ACTION_RINGTONE_PICKER` intent for [type] (notification or ringtone), pre-selecting
+ * the user's [current] choice and showing the system [defaultUri] as the "Default" option.
+ */
+internal fun buildRingtonePickerIntent(
+    type: Int,
+    current: NotificationSound,
+    defaultUri: Uri,
+): Intent = Intent(RingtoneManager.ACTION_RINGTONE_PICKER).apply {
+    putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, type)
+    putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_DEFAULT, true)
+    putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_SILENT, true)
+    putExtra(RingtoneManager.EXTRA_RINGTONE_DEFAULT_URI, defaultUri)
+    val existingUri: Uri? = when (current) {
+        // ElementDefault and ElementFade refer to bundled raw resources, which the system picker
+        // can't enumerate. Fall back to the picker's "Default" row so the user has something selected.
+        NotificationSound.SystemDefault,
+        NotificationSound.ElementDefault,
+        NotificationSound.ElementFade -> defaultUri
+        NotificationSound.Silent -> null
+        is NotificationSound.Custom -> current.uri.toUri()
+    }
+    putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, existingUri)
+}
+
+/**
+ * Maps the URI returned by the ringtone picker into a [NotificationSound]:
+ *  - null URI → the user picked "Silent",
+ *  - URI matching [defaultUri] → the user picked "Default",
+ *  - any other URI → the user picked a specific ringtone.
+ */
+internal fun Intent.toPickedNotificationSound(defaultUri: Uri): NotificationSound {
+    val pickedUri: Uri? = IntentCompat.getParcelableExtra(this, RingtoneManager.EXTRA_RINGTONE_PICKED_URI, Uri::class.java)
+    return when {
+        pickedUri == null -> NotificationSound.Silent
+        pickedUri == defaultUri -> NotificationSound.SystemDefault
+        else -> NotificationSound.Custom(pickedUri.toString())
+    }
+}

features/preferences/impl/src/main/res/values/localazy.xml

@@ -58,6 +58,7 @@
   <string name="screen_labs_header_title">"Feeling experimental?"</string>
   <string name="screen_labs_title">"Labs"</string>
   <string name="screen_notification_settings_additional_settings_section_title">"Additional settings"</string>
+  <string name="screen_notification_settings_call_ringtone_label">"Call ringtone"</string>
   <string name="screen_notification_settings_calls_label">"Audio and video calls"</string>
   <string name="screen_notification_settings_configuration_mismatch">"Configuration mismatch"</string>
   <string name="screen_notification_settings_configuration_mismatch_description">"We’ve simplified Notifications Settings to make options easier to find. Some custom settings you’ve chosen in the past are not shown here, but they’re still active.
@@ -76,10 +77,15 @@ If you proceed, some of your settings may change."</string>
   <string name="screen_notification_settings_invite_for_me_label">"Invitations"</string>
   <string name="screen_notification_settings_mentions_only_disclaimer">"Your homeserver does not support this option in encrypted rooms, you may not get notified in some rooms."</string>
   <string name="screen_notification_settings_mentions_section_title">"Mentions"</string>
+  <string name="screen_notification_settings_message_sound_dialog_choose_other">"Choose another sound…"</string>
+  <string name="screen_notification_settings_message_sound_dialog_current_subtitle">"Currently using %1$s"</string>
+  <string name="screen_notification_settings_message_sound_dialog_title">"Message sound"</string>
+  <string name="screen_notification_settings_message_sound_label">"Message sound"</string>
   <string name="screen_notification_settings_mode_all">"All"</string>
   <string name="screen_notification_settings_mode_mentions">"Mentions"</string>
   <string name="screen_notification_settings_notification_section_title">"Notify me for"</string>
   <string name="screen_notification_settings_room_mention_label">"Notify me on @room"</string>
+  <string name="screen_notification_settings_sound_custom_fallback">"Custom"</string>
   <string name="screen_notification_settings_sound_custom_sound_button_title">"Custom sound…"</string>
   <string name="screen_notification_settings_sound_delete_sound_error_title">"Error deleting file"</string>
   <string name="screen_notification_settings_sound_element_default">"Element Default"</string>
@@ -87,7 +93,9 @@ If you proceed, some of your settings may change."</string>
   <string name="screen_notification_settings_sound_import_sound_error_title">"Error importing file"</string>
   <string name="screen_notification_settings_sound_preview_sound_error_title">"Problem previewing alert sound"</string>
   <string name="screen_notification_settings_sound_section_title">"Sound"</string>
+  <string name="screen_notification_settings_sound_set_sound_error_dismiss_a11y">"Dismiss alert sound error"</string>
   <string name="screen_notification_settings_sound_set_sound_error_title">"Problem setting alert sound"</string>
+  <string name="screen_notification_settings_sound_silent">"Silent"</string>
   <string name="screen_notification_settings_sound_system_alert">"Alert"</string>
   <string name="screen_notification_settings_sound_system_anticipate">"Anticipate"</string>
   <string name="screen_notification_settings_sound_system_bell">"Bell"</string>
@@ -95,6 +103,7 @@ If you proceed, some of your settings may change."</string>
   <string name="screen_notification_settings_sound_system_calypso">"Calypso"</string>
   <string name="screen_notification_settings_sound_system_chime">"Chime"</string>
   <string name="screen_notification_settings_sound_system_choo_choo">"Choo Choo"</string>
+  <string name="screen_notification_settings_sound_system_default">"System Default"</string>
   <string name="screen_notification_settings_sound_system_descent">"Descent"</string>
   <string name="screen_notification_settings_sound_system_electronic">"Electronic"</string>
   <string name="screen_notification_settings_sound_system_fanfare">"Fanfare"</string>

features/preferences/impl/src/test/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSettingsPresenterTest.kt

@@ -17,21 +17,35 @@ import io.element.android.libraries.matrix.api.room.RoomNotificationMode
 import io.element.android.libraries.matrix.test.AN_EXCEPTION
 import io.element.android.libraries.matrix.test.FakeMatrixClient
 import io.element.android.libraries.matrix.test.notificationsettings.FakeNotificationSettingsService
+import io.element.android.libraries.preferences.api.store.AppPreferencesStore
+import io.element.android.libraries.preferences.api.store.NotificationSound
+import io.element.android.libraries.preferences.test.InMemoryAppPreferencesStore
 import io.element.android.libraries.push.api.PushService
+import io.element.android.libraries.push.api.notifications.NotificationSoundUpdater
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier
 import io.element.android.libraries.push.test.FakePushService
+import io.element.android.libraries.push.test.notifications.FakeNotificationSoundUpdater
+import io.element.android.libraries.push.test.notifications.FakeSoundDisplayNameResolver
+import io.element.android.libraries.push.test.notifications.sound.FakeNotificationSoundCopier
 import io.element.android.libraries.pushproviders.api.Distributor
 import io.element.android.libraries.pushproviders.api.PushProvider
 import io.element.android.libraries.pushproviders.test.FakePushProvider
 import io.element.android.libraries.pushstore.test.userpushstore.FakeUserPushStoreFactory
+import io.element.android.services.toolbox.test.strings.FakeStringProvider
 import io.element.android.tests.testutils.awaitLastSequentialItem
 import io.element.android.tests.testutils.consumeItemsUntilPredicate
 import io.element.android.tests.testutils.lambda.lambdaRecorder
+import io.element.android.tests.testutils.lambda.value
 import io.element.android.tests.testutils.test
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.test.TestScope
+import kotlinx.coroutines.test.advanceUntilIdle
 import kotlinx.coroutines.test.runTest
 import org.junit.Test
 import kotlin.time.Duration.Companion.milliseconds
 
+@Suppress("LargeClass")
 class NotificationSettingsPresenterTest {
     @Test
     fun `present - ensures initial state is correct`() = runTest {
@@ -353,10 +367,756 @@ class NotificationSettingsPresenterTest {
         )
     }
 
+    @Test
+    fun `present - SetMessageSound atomically persists, increments version, and recreates channel`() = runTest {
+        val recreateRecorder = lambdaRecorder<NotificationSound, Int, Unit> { _, _ -> }
+        val appPreferencesStore = InMemoryAppPreferencesStore()
+        val customSound = NotificationSound.Custom("content://media/internal/audio/media/42")
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { sound, version -> recreateRecorder(sound, version) },
+            ),
+        )
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            assertThat(initialState.messageSound.sound).isEqualTo(NotificationSound.SystemDefault)
+
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(customSound))
+
+            val updatedState = consumeItemsUntilPredicate { it.messageSound.sound == customSound }.last()
+            assertThat(updatedState.messageSound.sound).isEqualTo(customSound)
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().messageSoundVersion).isEqualTo(1)
+            recreateRecorder.assertions().isCalledOnce().with(value(customSound), value(1))
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - SetCallRingtone with Silent atomically persists and recreates channel`() = runTest {
+        val recreateRecorder = lambdaRecorder<NotificationSound, Int, Unit> { _, _ -> }
+        val appPreferencesStore = InMemoryAppPreferencesStore()
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateRingingCallChannelLambda = { sound, version -> recreateRecorder(sound, version) },
+            ),
+        )
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            assertThat(initialState.callRingtone.sound).isEqualTo(NotificationSound.SystemDefault)
+
+            initialState.eventSink(NotificationSettingsEvents.SetCallRingtone(NotificationSound.Silent))
+
+            val updatedState = consumeItemsUntilPredicate { it.callRingtone.sound == NotificationSound.Silent }.last()
+            assertThat(updatedState.callRingtone.sound).isEqualTo(NotificationSound.Silent)
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().callRingtoneVersion).isEqualTo(1)
+            recreateRecorder.assertions().isCalledOnce().with(value(NotificationSound.Silent), value(1))
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - successive message sound changes increment version each time`() = runTest {
+        val versions = mutableListOf<Int>()
+        val appPreferencesStore = InMemoryAppPreferencesStore()
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { _, version -> versions += version },
+            ),
+        )
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.Custom("content://a")))
+            consumeItemsUntilPredicate { it.messageSound.sound == NotificationSound.Custom("content://a") }
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.Custom("content://b")))
+            consumeItemsUntilPredicate { it.messageSound.sound == NotificationSound.Custom("content://b") }
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.SystemDefault))
+            consumeItemsUntilPredicate { it.messageSound.sound == NotificationSound.SystemDefault }
+
+            assertThat(versions).containsExactly(1, 2, 3).inOrder()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - SetMessageSound with SystemDefault clears existing custom URI`() = runTest {
+        val recreateRecorder = lambdaRecorder<NotificationSound, Int, Unit> { _, _ -> }
+        val appPreferencesStore = InMemoryAppPreferencesStore(messageSound = NotificationSound.Custom("content://existing"))
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { sound, version -> recreateRecorder(sound, version) },
+            ),
+        )
+        presenter.test {
+            consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid &&
+                    it.messageSound.sound == NotificationSound.Custom("content://existing")
+            }.last().eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.SystemDefault))
+            consumeItemsUntilPredicate { it.messageSound.sound == NotificationSound.SystemDefault }
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().messageSound).isEqualTo(NotificationSound.SystemDefault)
+            recreateRecorder.assertions().isCalledOnce().with(value(NotificationSound.SystemDefault), value(1))
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - SetMessageSound surfaces DataStore failure via changeNotificationSettingAction`() = runTest {
+        val backing = InMemoryAppPreferencesStore()
+        val store = object : AppPreferencesStore by backing {
+            override suspend fun setMessageSoundAndIncrementVersion(sound: NotificationSound, title: String?): Int {
+                error("Simulated DataStore failure")
+            }
+        }
+        val presenter = createNotificationSettingsPresenter(appPreferencesStore = store)
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.Custom("content://x")))
+
+            val errorState = consumeItemsUntilPredicate {
+                it.changeNotificationSettingAction.isFailure()
+            }.last()
+            assertThat(errorState.changeNotificationSettingAction.isFailure()).isTrue()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - SystemDefault and Silent display names do not invoke the resolver`() = runTest {
+        val resolverCalls = mutableListOf<String>()
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = InMemoryAppPreferencesStore(
+                messageSound = NotificationSound.SystemDefault,
+                callRingtone = NotificationSound.Silent,
+            ),
+            soundDisplayNameResolver = FakeSoundDisplayNameResolver(
+                resolveLambda = { uri ->
+                    resolverCalls += uri
+                    "Should not appear"
+                },
+            ),
+        )
+        presenter.test {
+            // The synchronous branches (SystemDefault / Silent) feed the label directly without
+            // routing through produceState — so the resolver is never invoked, and the label
+            // never flashes from the default to itself.
+            consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            assertThat(resolverCalls).isEmpty()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - ElementDefault and ElementFade display names do not invoke the resolver`() = runTest {
+        val resolverCalls = mutableListOf<String>()
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = InMemoryAppPreferencesStore(
+                messageSound = NotificationSound.ElementFade,
+                callRingtone = NotificationSound.ElementDefault,
+            ),
+            soundDisplayNameResolver = FakeSoundDisplayNameResolver(
+                resolveLambda = { uri ->
+                    resolverCalls += uri
+                    "Should not appear"
+                },
+            ),
+        )
+        presenter.test {
+            consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            assertThat(resolverCalls).isEmpty()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - resolves Custom display name via SoundDisplayNameResolver`() = runTest {
+        val resolverCalls = mutableListOf<String>()
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = InMemoryAppPreferencesStore(messageSound = NotificationSound.Custom("content://media/42")),
+            soundDisplayNameResolver = FakeSoundDisplayNameResolver(
+                resolveLambda = { uri ->
+                    resolverCalls += uri
+                    "Pixel notification"
+                },
+            ),
+        )
+        presenter.test {
+            val state = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid &&
+                    it.messageSound.displayName == "Pixel notification"
+            }.last()
+            assertThat(state.messageSound.displayName).isEqualTo("Pixel notification")
+            assertThat(resolverCalls).contains("content://media/42")
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - Custom display name falls back to localized Custom string when no persisted title and resolver returns null`() = runTest {
+        val resolverCalls = mutableListOf<String>()
+        val presenter = createNotificationSettingsPresenter(
+            // No persisted display name (legacy data path). Resolver returns null. Final fallback
+            // is the localised string resource (FakeStringProvider returns "A string" for any
+            // resource id) — never the default label, so the row is not mislabelled as "System default".
+            appPreferencesStore = InMemoryAppPreferencesStore(messageSound = NotificationSound.Custom("content://gone")),
+            soundDisplayNameResolver = FakeSoundDisplayNameResolver(
+                resolveLambda = { uri ->
+                    resolverCalls += uri
+                    null
+                },
+            ),
+        )
+        presenter.test {
+            val state = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid &&
+                    it.messageSound.sound is NotificationSound.Custom &&
+                    it.messageSound.displayName == "A string"
+            }.last()
+            assertThat(state.messageSound.displayName).isEqualTo("A string")
+            assertThat(resolverCalls).contains("content://gone")
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - persisted in-app pick takes precedence over channel read`() = runTest {
+        // When DataStore holds a real in-app pick, the channel read must not run. Persisted
+        // value is what the user explicitly chose; channel state is only a fallback.
+        var channelReadCalls = 0
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = InMemoryAppPreferencesStore(
+                messageSound = NotificationSound.Custom("content://persisted"),
+                messageSoundDisplayName = "Persisted Tone",
+            ),
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                readNoisyChannelSoundLambda = {
+                    channelReadCalls++
+                    NotificationSound.Custom("content://channel/should-not-appear")
+                },
+            ),
+        )
+        presenter.test {
+            val state = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid &&
+                    it.messageSound.displayName == "Persisted Tone"
+            }.last()
+            assertThat(state.messageSound.sound).isEqualTo(NotificationSound.Custom("content://persisted"))
+            assertThat(channelReadCalls).isEqualTo(0)
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - persisted display name takes precedence over live resolver probe`() = runTest {
+        val resolverCalls = mutableListOf<String>()
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = InMemoryAppPreferencesStore(
+                messageSound = NotificationSound.Custom("content://media/42"),
+                messageSoundDisplayName = "Captured at copy time",
+            ),
+            soundDisplayNameResolver = FakeSoundDisplayNameResolver(
+                resolveLambda = { uri ->
+                    resolverCalls += uri
+                    "Live probe (should not appear)"
+                },
+            ),
+        )
+        presenter.test {
+            val state = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid &&
+                    it.messageSound.displayName == "Captured at copy time"
+            }.last()
+            assertThat(state.messageSound.displayName).isEqualTo("Captured at copy time")
+            // Live resolver must not be invoked when a persisted title is available.
+            assertThat(resolverCalls).isEmpty()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun `present - SetMessageSound with Custom copies via copier and persists the FileProvider URI`() = runTest {
+        val recreateRecorder = lambdaRecorder<NotificationSound, Int, Unit> { _, _ -> }
+        val appPreferencesStore = InMemoryAppPreferencesStore()
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { sound, version -> recreateRecorder(sound, version) },
+            ),
+            notificationSoundCopier = FakeNotificationSoundCopier(copyLambda = { _, _ ->
+                NotificationSoundCopier.CopyResult.Success(
+                    fileProviderUriString = "content://my.app.fileprovider/notification_sounds/message_sound.ogg",
+                    displayName = "Cool Tone",
+                )
+            }),
+        )
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.Custom("content://media/source")))
+            advanceUntilIdle()
+
+            val expectedSound = NotificationSound.Custom("content://my.app.fileprovider/notification_sounds/message_sound.ogg")
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().messageSound).isEqualTo(expectedSound)
+            assertThat(appPreferencesStore.getMessageSoundDisplayNameFlow().first()).isEqualTo("Cool Tone")
+            recreateRecorder.assertions().isCalledOnce().with(value(expectedSound), value(1))
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - SetMessageSound copy failure surfaces inline error and leaves prior choice intact`() = runTest {
+        val priorChoice = NotificationSound.Custom("content://prior")
+        val appPreferencesStore = InMemoryAppPreferencesStore(messageSound = priorChoice)
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundCopier = FakeNotificationSoundCopier(copyLambda = { _, _ ->
+                NotificationSoundCopier.CopyResult.UnplayableSource
+            }),
+        )
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.Custom("content://broken")))
+
+            val errorState = consumeItemsUntilPredicate { it.messageSound.copyError }.last()
+            assertThat(errorState.messageSound.copyError).isTrue()
+            // Persisted state is unchanged.
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().messageSound).isEqualTo(priorChoice)
+
+            // Dismissing the inline error clears the flag without altering persistence.
+            errorState.eventSink(NotificationSettingsEvents.DismissMessageSoundCopyError)
+            val cleared = consumeItemsUntilPredicate { !it.messageSound.copyError }.last()
+            assertThat(cleared.messageSound.copyError).isFalse()
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().messageSound).isEqualTo(priorChoice)
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - SetCallRingtone copy failure surfaces inline error and leaves prior choice intact`() = runTest {
+        val priorChoice = NotificationSound.Custom("content://prior")
+        val appPreferencesStore = InMemoryAppPreferencesStore(callRingtone = priorChoice)
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundCopier = FakeNotificationSoundCopier(copyLambda = { _, _ ->
+                NotificationSoundCopier.CopyResult.UnplayableSource
+            }),
+        )
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            initialState.eventSink(NotificationSettingsEvents.SetCallRingtone(NotificationSound.Custom("content://broken")))
+
+            val errorState = consumeItemsUntilPredicate { it.callRingtone.copyError }.last()
+            assertThat(errorState.callRingtone.copyError).isTrue()
+            // Persisted state is unchanged.
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().callRingtone).isEqualTo(priorChoice)
+
+            // Dismissing the inline error clears the flag without altering persistence.
+            errorState.eventSink(NotificationSettingsEvents.DismissCallRingtoneCopyError)
+            val cleared = consumeItemsUntilPredicate { !it.callRingtone.copyError }.last()
+            assertThat(cleared.callRingtone.copyError).isFalse()
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().callRingtone).isEqualTo(priorChoice)
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun `present - SystemDefault and Silent picks bypass the copier`() = runTest {
+        val copierCalls = mutableListOf<String>()
+        val presenter = createNotificationSettingsPresenter(
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { _, _ -> },
+                recreateRingingCallChannelLambda = { _, _ -> },
+            ),
+            notificationSoundCopier = FakeNotificationSoundCopier(copyLambda = { source, _ ->
+                copierCalls += source
+                NotificationSoundCopier.CopyResult.Success(source, "x")
+            }),
+        )
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.SystemDefault))
+            initialState.eventSink(NotificationSettingsEvents.SetCallRingtone(NotificationSound.Silent))
+            advanceUntilIdle()
+            assertThat(copierCalls).isEmpty()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun `present - non-Custom picks delete the stored slot file`() = runTest {
+        val deleteCalls = mutableListOf<NotificationSoundCopier.SoundSlot>()
+        // Start from persisted Custom for both slots so the non-Custom picks below are real
+        // transitions (no-op short-circuit only fires when the new sound equals the persisted one).
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = InMemoryAppPreferencesStore(
+                messageSound = NotificationSound.Custom("content://prior-message"),
+                callRingtone = NotificationSound.Custom("content://prior-call"),
+            ),
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { _, _ -> },
+                recreateRingingCallChannelLambda = { _, _ -> },
+            ),
+            notificationSoundCopier = FakeNotificationSoundCopier(
+                copyLambda = { _, _ -> NotificationSoundCopier.CopyResult.Failure(IllegalStateException("not expected")) },
+                deleteStoredSoundForLambda = { slot -> deleteCalls += slot },
+            ),
+        )
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.SystemDefault))
+            initialState.eventSink(NotificationSettingsEvents.SetCallRingtone(NotificationSound.Silent))
+            advanceUntilIdle()
+            assertThat(deleteCalls).containsExactly(
+                NotificationSoundCopier.SoundSlot.Message,
+                NotificationSoundCopier.SoundSlot.Call,
+            )
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun `present - re-selecting the persisted non-Custom sound is a no-op`() = runTest {
+        val recreateCalls = mutableListOf<Int>()
+        val deleteCalls = mutableListOf<NotificationSoundCopier.SoundSlot>()
+        val copierCalls = mutableListOf<String>()
+        val appPreferencesStore = InMemoryAppPreferencesStore(
+            messageSound = NotificationSound.ElementDefault,
+            messageSoundChannelVersion = 5,
+            callRingtone = NotificationSound.Silent,
+            callRingtoneChannelVersion = 3,
+        )
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundCopier = FakeNotificationSoundCopier(
+                copyLambda = { source, _ ->
+                    copierCalls += source
+                    NotificationSoundCopier.CopyResult.Success(source, "title")
+                },
+                deleteStoredSoundForLambda = { slot -> deleteCalls += slot },
+            ),
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { _, version -> recreateCalls += version },
+                recreateRingingCallChannelLambda = { _, version -> recreateCalls += version },
+            ),
+        )
+        presenter.test {
+            val initial = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+
+            // Re-pick the persisted sound for both slots — neither should churn the channel,
+            // bump the version, or hit the copier / delete sweep.
+            initial.eventSink(NotificationSettingsEvents.SelectMessageSoundPreset(NotificationSound.ElementDefault))
+            initial.eventSink(NotificationSettingsEvents.SetCallRingtone(NotificationSound.Silent))
+            advanceUntilIdle()
+
+            val config = appPreferencesStore.getNotificationSoundChannelConfig()
+            assertThat(config.messageSoundVersion).isEqualTo(5)
+            assertThat(config.callRingtoneVersion).isEqualTo(3)
+            assertThat(recreateCalls).isEmpty()
+            assertThat(copierCalls).isEmpty()
+            assertThat(deleteCalls).isEmpty()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun `present - rapid back-to-back picks settle in deterministic order`() = runTest {
+        // Defends the persist+recreate window against rapid event firing (e.g. an accessibility
+        // service driving the dialog). The per-slot mutex in the presenter forces copy → persist
+        // → recreate to complete for the first pick before the second begins, so the recreated
+        // version sequence matches the persisted version sequence.
+        val recreatedVersions = mutableListOf<Int>()
+        val copyOrder = mutableListOf<String>()
+        val appPreferencesStore = InMemoryAppPreferencesStore()
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundCopier = FakeNotificationSoundCopier(copyLambda = { source, _ ->
+                copyOrder += source
+                NotificationSoundCopier.CopyResult.Success(source, "title")
+            }),
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { _, version -> recreatedVersions += version },
+            ),
+        )
+        presenter.test {
+            val initial = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            initial.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.Custom("content://A")))
+            initial.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.Custom("content://B")))
+            advanceUntilIdle()
+
+            assertThat(copyOrder).containsExactly("content://A", "content://B").inOrder()
+            assertThat(recreatedVersions).containsExactly(1, 2).inOrder()
+            val config = appPreferencesStore.getNotificationSoundChannelConfig()
+            assertThat(config.messageSoundVersion).isEqualTo(2)
+            assertThat(config.messageSound).isEqualTo(NotificationSound.Custom("content://B"))
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun `present - Custom pick does not invoke deleteStoredSoundFor (copier sweeps inline)`() = runTest {
+        val deleteCalls = mutableListOf<NotificationSoundCopier.SoundSlot>()
+        val presenter = createNotificationSettingsPresenter(
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { _, _ -> },
+            ),
+            notificationSoundCopier = FakeNotificationSoundCopier(
+                copyLambda = { _, _ ->
+                    NotificationSoundCopier.CopyResult.Success(
+                        fileProviderUriString = "content://my.app.fileprovider/notification_sounds/message_sound.mp3",
+                        displayName = "New Tone",
+                    )
+                },
+                deleteStoredSoundForLambda = { slot -> deleteCalls += slot },
+            ),
+        )
+        presenter.test {
+            val initialState = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            initialState.eventSink(NotificationSettingsEvents.SetMessageSound(NotificationSound.Custom("content://media/source")))
+            advanceUntilIdle()
+            assertThat(deleteCalls).isEmpty()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - ShowMessageSoundDialog and DismissMessageSoundDialog toggle dialog visibility`() = runTest {
+        val presenter = createNotificationSettingsPresenter()
+        presenter.test {
+            val initial = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            assertThat(initial.showMessageSoundDialog).isFalse()
+
+            initial.eventSink(NotificationSettingsEvents.ShowMessageSoundDialog)
+            val shown = consumeItemsUntilPredicate { it.showMessageSoundDialog }.last()
+            assertThat(shown.showMessageSoundDialog).isTrue()
+
+            shown.eventSink(NotificationSettingsEvents.DismissMessageSoundDialog)
+            val hidden = consumeItemsUntilPredicate { !it.showMessageSoundDialog }.last()
+            assertThat(hidden.showMessageSoundDialog).isFalse()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun `present - SelectMessageSoundPreset persists ElementDefault, recreates the channel and closes the dialog`() = runTest {
+        val recreateRecorder = lambdaRecorder<NotificationSound, Int, Unit> { _, _ -> }
+        val appPreferencesStore = InMemoryAppPreferencesStore()
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateNoisyChannelLambda = { sound, version -> recreateRecorder(sound, version) },
+            ),
+        )
+        presenter.test {
+            val initial = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            initial.eventSink(NotificationSettingsEvents.ShowMessageSoundDialog)
+            val shown = consumeItemsUntilPredicate { it.showMessageSoundDialog }.last()
+
+            shown.eventSink(NotificationSettingsEvents.SelectMessageSoundPreset(NotificationSound.ElementDefault))
+            advanceUntilIdle()
+            consumeItemsUntilPredicate {
+                !it.showMessageSoundDialog && it.messageSound.sound == NotificationSound.ElementDefault
+            }
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().messageSound)
+                .isEqualTo(NotificationSound.ElementDefault)
+            recreateRecorder.assertions().isCalledOnce().with(value(NotificationSound.ElementDefault), value(1))
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - LaunchMessageSoundPicker increments the picker token and closes the dialog`() = runTest {
+        val presenter = createNotificationSettingsPresenter()
+        presenter.test {
+            val initial = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            assertThat(initial.pendingMessageSoundPickerLaunch).isEqualTo(0)
+            initial.eventSink(NotificationSettingsEvents.ShowMessageSoundDialog)
+            val shown = consumeItemsUntilPredicate { it.showMessageSoundDialog }.last()
+
+            shown.eventSink(NotificationSettingsEvents.LaunchMessageSoundPicker)
+            val launched = consumeItemsUntilPredicate { it.pendingMessageSoundPickerLaunch == 1 }.last()
+            assertThat(launched.showMessageSoundDialog).isFalse()
+            assertThat(launched.pendingMessageSoundPickerLaunch).isEqualTo(1)
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - ShowCallRingtoneDialog and DismissCallRingtoneDialog toggle dialog visibility`() = runTest {
+        val presenter = createNotificationSettingsPresenter()
+        presenter.test {
+            val initial = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            assertThat(initial.showCallRingtoneDialog).isFalse()
+
+            initial.eventSink(NotificationSettingsEvents.ShowCallRingtoneDialog)
+            val shown = consumeItemsUntilPredicate { it.showCallRingtoneDialog }.last()
+            assertThat(shown.showCallRingtoneDialog).isTrue()
+
+            shown.eventSink(NotificationSettingsEvents.DismissCallRingtoneDialog)
+            val hidden = consumeItemsUntilPredicate { !it.showCallRingtoneDialog }.last()
+            assertThat(hidden.showCallRingtoneDialog).isFalse()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun `present - SelectCallRingtonePreset persists SystemDefault, recreates the channel and closes the dialog`() = runTest {
+        val recreateRecorder = lambdaRecorder<NotificationSound, Int, Unit> { _, _ -> }
+        val appPreferencesStore = InMemoryAppPreferencesStore(callRingtone = NotificationSound.Silent)
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateRingingCallChannelLambda = { sound, version -> recreateRecorder(sound, version) },
+            ),
+        )
+        presenter.test {
+            val initial = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid &&
+                    it.callRingtone.sound == NotificationSound.Silent
+            }.last()
+            initial.eventSink(NotificationSettingsEvents.ShowCallRingtoneDialog)
+            val shown = consumeItemsUntilPredicate { it.showCallRingtoneDialog }.last()
+
+            shown.eventSink(NotificationSettingsEvents.SelectCallRingtonePreset(NotificationSound.SystemDefault))
+            advanceUntilIdle()
+            consumeItemsUntilPredicate {
+                !it.showCallRingtoneDialog && it.callRingtone.sound == NotificationSound.SystemDefault
+            }
+            assertThat(appPreferencesStore.getNotificationSoundChannelConfig().callRingtone)
+                .isEqualTo(NotificationSound.SystemDefault)
+            recreateRecorder.assertions().isCalledOnce().with(value(NotificationSound.SystemDefault), value(1))
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - LaunchCallRingtonePicker increments the picker token and closes the dialog`() = runTest {
+        val presenter = createNotificationSettingsPresenter()
+        presenter.test {
+            val initial = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid
+            }.last()
+            assertThat(initial.pendingCallRingtonePickerLaunch).isEqualTo(0)
+            initial.eventSink(NotificationSettingsEvents.ShowCallRingtoneDialog)
+            val shown = consumeItemsUntilPredicate { it.showCallRingtoneDialog }.last()
+
+            shown.eventSink(NotificationSettingsEvents.LaunchCallRingtonePicker)
+            val launched = consumeItemsUntilPredicate { it.pendingCallRingtonePickerLaunch == 1 }.last()
+            assertThat(launched.showCallRingtoneDialog).isFalse()
+            assertThat(launched.pendingCallRingtonePickerLaunch).isEqualTo(1)
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun `present - SelectCallRingtonePreset clears legacy ringtone classification`() = runTest {
+        // Legacy state: persisted SystemDefault + channel version 0 means the presenter probes the
+        // channel and surfaces whatever Android system has. We seed that probe with Silent so the
+        // initial row reads Silent even though DataStore holds SystemDefault. A preset pick must
+        // null the legacy classifier; otherwise re-reading state would still resolve to Silent
+        // after the SystemDefault selection persists.
+        val appPreferencesStore = InMemoryAppPreferencesStore(
+            callRingtone = NotificationSound.SystemDefault,
+            callRingtoneChannelVersion = 0,
+        )
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundUpdater = FakeNotificationSoundUpdater(
+                recreateRingingCallChannelLambda = { _, _ -> },
+                readRingingCallChannelSoundLambda = { NotificationSound.Silent },
+            ),
+        )
+        presenter.test {
+            val initial = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid &&
+                    it.callRingtone.sound == NotificationSound.Silent
+            }.last()
+            initial.eventSink(NotificationSettingsEvents.SelectCallRingtonePreset(NotificationSound.SystemDefault))
+            advanceUntilIdle()
+            val after = consumeItemsUntilPredicate {
+                it.callRingtone.sound == NotificationSound.SystemDefault
+            }.last()
+            assertThat(after.callRingtone.sound).isEqualTo(NotificationSound.SystemDefault)
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - persisted ElementDefault renders Element default label`() = runTest {
+        val presenter = createNotificationSettingsPresenter(
+            appPreferencesStore = InMemoryAppPreferencesStore(messageSound = NotificationSound.ElementDefault),
+        )
+        presenter.test {
+            val state = consumeItemsUntilPredicate {
+                it.matrixSettings is NotificationSettingsState.MatrixSettings.Valid &&
+                    it.messageSound.sound == NotificationSound.ElementDefault
+            }.last()
+            // FakeStringProvider returns "A string" for any resource, so this just verifies the
+            // ElementDefault branch is taken (vs falling through to the Custom resolver path).
+            assertThat(state.messageSound.displayName).isEqualTo("A string")
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
     private fun TestScope.createNotificationSettingsPresenter(
         notificationSettingsService: FakeNotificationSettingsService = FakeNotificationSettingsService(),
         pushService: PushService = FakePushService(),
         fullScreenIntentPermissionsStateLambda: () -> FullScreenIntentPermissionsState = { aFullScreenIntentPermissionsState() },
+        appPreferencesStore: AppPreferencesStore = InMemoryAppPreferencesStore(),
+        notificationSoundUpdater: NotificationSoundUpdater = FakeNotificationSoundUpdater(),
+        // Default copier passes the picked URI string straight through as the FileProvider URI
+        // and uses the URI string as the display name. Tests that exercise copy failures override.
+        notificationSoundCopier: NotificationSoundCopier = FakeNotificationSoundCopier(copyLambda = { source, _ ->
+            NotificationSoundCopier.CopyResult.Success(source, source)
+        }),
+        soundDisplayNameResolver: FakeSoundDisplayNameResolver = FakeSoundDisplayNameResolver(),
     ): NotificationSettingsPresenter {
         val matrixClient = FakeMatrixClient(notificationSettingsService = notificationSettingsService)
         return NotificationSettingsPresenter(
@@ -366,6 +1126,11 @@ class NotificationSettingsPresenterTest {
             pushService = pushService,
             systemNotificationsEnabledProvider = FakeSystemNotificationsEnabledProvider(),
             fullScreenIntentPermissionsPresenter = { fullScreenIntentPermissionsStateLambda() },
+            appPreferencesStore = appPreferencesStore,
+            notificationSoundUpdater = notificationSoundUpdater,
+            notificationSoundCopier = notificationSoundCopier,
+            soundDisplayNameResolver = soundDisplayNameResolver,
+            stringProvider = FakeStringProvider(),
             sessionCoroutineScope = backgroundScope,
         )
     }

features/preferences/impl/src/test/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSettingsViewTest.kt

@@ -13,6 +13,7 @@ package io.element.android.features.preferences.impl.notifications
 import androidx.activity.ComponentActivity
 import androidx.compose.ui.test.AndroidComposeUiTest
 import androidx.compose.ui.test.ExperimentalTestApi
+import androidx.compose.ui.test.assertIsDisplayed
 import androidx.compose.ui.test.onNodeWithText
 import androidx.compose.ui.test.performClick
 import androidx.compose.ui.test.v2.runAndroidComposeUiTest
@@ -49,7 +50,7 @@ class NotificationSettingsViewTest {
         eventsRecorder.assertSingle(NotificationSettingsEvents.RefreshSystemNotificationsEnabled)
     }
 
-    @Config(qualifiers = "h1024dp")
+    @Config(qualifiers = "h1280dp")
     @Test
     fun `clicking on troubleshoot notification invokes the expected callback`() = runAndroidComposeUiTest {
         val eventsRecorder = EventsRecorder<NotificationSettingsEvents>()
@@ -241,7 +242,7 @@ class NotificationSettingsViewTest {
         )
     }
 
-    @Config(qualifiers = "h1024dp")
+    @Config(qualifiers = "h1280dp")
     @Test
     fun `clicking on Push notification provider emits the expected event`() = runAndroidComposeUiTest {
         val eventsRecorder = EventsRecorder<NotificationSettingsEvents>()
@@ -277,6 +278,43 @@ class NotificationSettingsViewTest {
             )
         )
     }
+
+    @Config(qualifiers = "h1280dp")
+    @Test
+    fun `sounds preference category renders rows with current display names`() = runAndroidComposeUiTest {
+        val eventsRecorder = EventsRecorder<NotificationSettingsEvents>()
+        setNotificationSettingsView(
+            state = aValidNotificationSettingsState(
+                eventSink = eventsRecorder,
+                messageSoundDisplayName = "Pixel notification",
+                callRingtoneDisplayName = "Pixel ringtone",
+            ),
+        )
+        onNodeWithText("Sound").assertIsDisplayed()
+        onNodeWithText("Message sound").assertIsDisplayed()
+        onNodeWithText("Call ringtone").assertIsDisplayed()
+        onNodeWithText("Pixel notification").assertIsDisplayed()
+        onNodeWithText("Pixel ringtone").assertIsDisplayed()
+    }
+
+    @Config(qualifiers = "h1280dp")
+    @Test
+    fun `clicking the message sound row opens the preset dialog`() = runAndroidComposeUiTest {
+        val eventsRecorder = EventsRecorder<NotificationSettingsEvents>()
+        setNotificationSettingsView(
+            state = aValidNotificationSettingsState(eventSink = eventsRecorder),
+        )
+        // The click now opens the in-app preset dialog instead of launching the system picker
+        // directly; the picker only fires from the dialog's "Choose another sound..." option
+        // (covered by Presenter tests + NotificationSoundPickerTest).
+        onNodeWithText("Message sound").performClick()
+        eventsRecorder.assertList(
+            listOf(
+                NotificationSettingsEvents.RefreshSystemNotificationsEnabled,
+                NotificationSettingsEvents.ShowMessageSoundDialog,
+            )
+        )
+    }
 }
 
 private fun AndroidComposeUiTest<ComponentActivity>.setNotificationSettingsView(

features/preferences/impl/src/test/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSoundPickerTest.kt

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.features.preferences.impl.notifications
+
+import android.content.Intent
+import android.media.RingtoneManager
+import android.net.Uri
+import android.provider.Settings
+import androidx.core.net.toUri
+import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.preferences.api.store.NotificationSound
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+
+@RunWith(RobolectricTestRunner::class)
+class NotificationSoundPickerTest {
+    @Test
+    fun `buildRingtonePickerIntent encodes SystemDefault as the system default URI`() {
+        val intent = buildRingtonePickerIntent(
+            type = RingtoneManager.TYPE_NOTIFICATION,
+            current = NotificationSound.SystemDefault,
+            defaultUri = Settings.System.DEFAULT_NOTIFICATION_URI,
+        )
+        assertThat(intent.action).isEqualTo(RingtoneManager.ACTION_RINGTONE_PICKER)
+        assertThat(intent.getIntExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, -1)).isEqualTo(RingtoneManager.TYPE_NOTIFICATION)
+        assertThat(intent.getBooleanExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_DEFAULT, false)).isTrue()
+        assertThat(intent.getBooleanExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_SILENT, false)).isTrue()
+        @Suppress("DEPRECATION")
+        val existing: Uri? = intent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI)
+        assertThat(existing).isEqualTo(Settings.System.DEFAULT_NOTIFICATION_URI)
+    }
+
+    @Test
+    fun `buildRingtonePickerIntent encodes Silent as a null existing URI`() {
+        val intent = buildRingtonePickerIntent(
+            type = RingtoneManager.TYPE_RINGTONE,
+            current = NotificationSound.Silent,
+            defaultUri = Settings.System.DEFAULT_RINGTONE_URI,
+        )
+        @Suppress("DEPRECATION")
+        val existing: Uri? = intent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI)
+        assertThat(existing).isNull()
+    }
+
+    @Test
+    fun `buildRingtonePickerIntent encodes Custom as the parsed URI`() {
+        val intent = buildRingtonePickerIntent(
+            type = RingtoneManager.TYPE_NOTIFICATION,
+            current = NotificationSound.Custom("content://media/internal/audio/media/42"),
+            defaultUri = Settings.System.DEFAULT_NOTIFICATION_URI,
+        )
+        @Suppress("DEPRECATION")
+        val existing: Uri? = intent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI)
+        assertThat(existing).isEqualTo("content://media/internal/audio/media/42".toUri())
+    }
+
+    @Test
+    fun `toPickedNotificationSound maps null URI to Silent`() {
+        val result = Intent().apply {
+            putExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI, null as Uri?)
+        }
+        assertThat(result.toPickedNotificationSound(Settings.System.DEFAULT_NOTIFICATION_URI))
+            .isEqualTo(NotificationSound.Silent)
+    }
+
+    @Test
+    fun `toPickedNotificationSound maps default URI to SystemDefault`() {
+        val result = Intent().apply {
+            putExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI, Settings.System.DEFAULT_NOTIFICATION_URI)
+        }
+        assertThat(result.toPickedNotificationSound(Settings.System.DEFAULT_NOTIFICATION_URI))
+            .isEqualTo(NotificationSound.SystemDefault)
+    }
+
+    @Test
+    fun `toPickedNotificationSound maps any other URI to Custom`() {
+        val customUri = "content://media/internal/audio/media/42".toUri()
+        val result = Intent().apply {
+            putExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI, customUri)
+        }
+        assertThat(result.toPickedNotificationSound(Settings.System.DEFAULT_NOTIFICATION_URI))
+            .isEqualTo(NotificationSound.Custom(customUri.toString()))
+    }
+}

features/preferences/impl/src/test/kotlin/io/element/android/features/preferences/impl/notifications/NotificationSoundStorageTest.kt

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.features.preferences.impl.notifications
+
+import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.preferences.api.store.NotificationSound
+import io.element.android.libraries.preferences.api.store.NotificationSound.Companion.toStored
+import org.junit.Test
+
+class NotificationSoundStorageTest {
+    @Test
+    fun `fromStored - null maps to SystemDefault`() {
+        assertThat(NotificationSound.fromStored(null)).isEqualTo(NotificationSound.SystemDefault)
+    }
+
+    @Test
+    fun `fromStored - silent sentinel maps to Silent`() {
+        assertThat(NotificationSound.fromStored("silent")).isEqualTo(NotificationSound.Silent)
+    }
+
+    @Test
+    fun `fromStored - element_default sentinel maps to ElementDefault`() {
+        assertThat(NotificationSound.fromStored("element_default")).isEqualTo(NotificationSound.ElementDefault)
+    }
+
+    @Test
+    fun `fromStored - element_fade sentinel maps to ElementFade`() {
+        assertThat(NotificationSound.fromStored("element_fade")).isEqualTo(NotificationSound.ElementFade)
+    }
+
+    @Test
+    fun `fromStored - any other string is treated as a Custom URI`() {
+        assertThat(NotificationSound.fromStored("content://media/42"))
+            .isEqualTo(NotificationSound.Custom("content://media/42"))
+    }
+
+    @Test
+    fun `toStored - SystemDefault encodes as null`() {
+        assertThat(NotificationSound.SystemDefault.toStored()).isNull()
+    }
+
+    @Test
+    fun `toStored - ElementDefault encodes as element_default`() {
+        assertThat(NotificationSound.ElementDefault.toStored()).isEqualTo("element_default")
+    }
+
+    @Test
+    fun `toStored - ElementFade encodes as element_fade`() {
+        assertThat(NotificationSound.ElementFade.toStored()).isEqualTo("element_fade")
+    }
+
+    @Test
+    fun `toStored - Silent encodes as silent`() {
+        assertThat(NotificationSound.Silent.toStored()).isEqualTo("silent")
+    }
+
+    @Test
+    fun `toStored - Custom encodes as the URI string`() {
+        assertThat(NotificationSound.Custom("content://x").toStored()).isEqualTo("content://x")
+    }
+
+    @Test
+    fun `round-trip preserves every variant`() {
+        val variants = listOf(
+            NotificationSound.SystemDefault,
+            NotificationSound.ElementDefault,
+            NotificationSound.ElementFade,
+            NotificationSound.Silent,
+            NotificationSound.Custom("content://media/42"),
+        )
+        for (sound in variants) {
+            assertThat(NotificationSound.fromStored(sound.toStored())).isEqualTo(sound)
+        }
+    }
+}

libraries/preferences/api/build.gradle.kts

@@ -9,7 +9,7 @@ import extension.testCommonDependencies
  */
 
 plugins {
-    id("io.element.android-library")
+    id("io.element.android-compose-library")
 }
 
 android {

libraries/preferences/api/src/main/kotlin/io/element/android/libraries/preferences/api/store/AppPreferencesStore.kt

@@ -41,5 +41,27 @@ interface AppPreferencesStore {
     suspend fun setTracingLogPacks(targets: Set<TraceLogPack>)
     fun getTracingLogPacksFlow(): Flow<Set<TraceLogPack>>
 
+    fun getMessageSoundFlow(): Flow<NotificationSound>
+
+    /**
+     * Atomically persists [sound] (with copy-time [title] for Custom; cleared otherwise) and
+     * bumps the channel version. Single transaction so process death can't desync URI and version.
+     */
+    suspend fun setMessageSoundAndIncrementVersion(sound: NotificationSound, title: String?): Int
+
+    /** Title captured at copy time. Null for SystemDefault / Silent or pre-title persisted data. */
+    fun getMessageSoundDisplayNameFlow(): Flow<String?>
+
+    fun getCallRingtoneFlow(): Flow<NotificationSound>
+
+    /** See [setMessageSoundAndIncrementVersion]. */
+    suspend fun setCallRingtoneAndIncrementVersion(sound: NotificationSound, title: String?): Int
+
+    /** See [getMessageSoundDisplayNameFlow]. */
+    fun getCallRingtoneDisplayNameFlow(): Flow<String?>
+
+    /** Single-snapshot read of all sound prefs; used at boot to seed channels without N reads. */
+    suspend fun getNotificationSoundChannelConfig(): NotificationSoundChannelConfig
+
     suspend fun reset()
 }

libraries/preferences/api/src/main/kotlin/io/element/android/libraries/preferences/api/store/NotificationSound.kt

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.preferences.api.store
+
+import androidx.compose.runtime.Immutable
+
+/**
+ * The user's choice of notification sound for a notification channel.
+ */
+@Immutable
+sealed interface NotificationSound {
+    /** Use the system's default tone for this channel (e.g. notification or ringtone). */
+    data object SystemDefault : NotificationSound
+
+    /**
+     * Use the bundled in-app sound. Semantically meaningful only for the noisy message channel,
+     * where it resolves to `R.raw.message`; the ringing-call channel has no bundled tone and
+     * treats this the same as [SystemDefault].
+     */
+    data object ElementDefault : NotificationSound
+
+    /**
+     * Use the bundled in-app fade sound. Like [ElementDefault] this is meaningful only for the
+     * noisy message channel (`R.raw.element_fade`); the ringing-call channel has no bundled tone
+     * and treats this the same as [SystemDefault].
+     */
+    data object ElementFade : NotificationSound
+
+    /** Produce no sound. */
+    data object Silent : NotificationSound
+
+    /** Use the ringtone at [uri]. */
+    data class Custom(val uri: String) : NotificationSound
+
+    companion object {
+        // String? round-trip used by [AppPreferencesStore]:
+        //   null -> SystemDefault, "silent" -> Silent, "element_default" -> ElementDefault,
+        //   "element_fade" -> ElementFade, else -> Custom(uri).
+        private const val STORED_SILENT = "silent"
+        private const val STORED_ELEMENT_DEFAULT = "element_default"
+        private const val STORED_ELEMENT_FADE = "element_fade"
+
+        fun fromStored(value: String?): NotificationSound = when (value) {
+            null -> SystemDefault
+            STORED_SILENT -> Silent
+            STORED_ELEMENT_DEFAULT -> ElementDefault
+            STORED_ELEMENT_FADE -> ElementFade
+            else -> Custom(value)
+        }
+
+        fun NotificationSound.toStored(): String? = when (this) {
+            SystemDefault -> null
+            Silent -> STORED_SILENT
+            ElementDefault -> STORED_ELEMENT_DEFAULT
+            ElementFade -> STORED_ELEMENT_FADE
+            is Custom -> uri
+        }
+    }
+}
+
+/**
+ * Snapshot of the persisted notification-sound state, returned by
+ * [AppPreferencesStore.getNotificationSoundChannelConfig] in a single read.
+ */
+data class NotificationSoundChannelConfig(
+    val messageSound: NotificationSound,
+    val messageSoundVersion: Int,
+    val messageSoundDisplayName: String?,
+    val callRingtone: NotificationSound,
+    val callRingtoneVersion: Int,
+    val callRingtoneDisplayName: String?,
+)

libraries/preferences/impl/src/main/kotlin/io/element/android/libraries/preferences/impl/store/DefaultAppPreferencesStore.kt

@@ -20,8 +20,12 @@ import io.element.android.libraries.matrix.api.media.MediaPreviewValue
 import io.element.android.libraries.matrix.api.tracing.LogLevel
 import io.element.android.libraries.matrix.api.tracing.TraceLogPack
 import io.element.android.libraries.preferences.api.store.AppPreferencesStore
+import io.element.android.libraries.preferences.api.store.NotificationSound
+import io.element.android.libraries.preferences.api.store.NotificationSound.Companion.toStored
+import io.element.android.libraries.preferences.api.store.NotificationSoundChannelConfig
 import io.element.android.libraries.preferences.api.store.PreferenceDataStoreFactory
 import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.map
 
 private val developerModeKey = booleanPreferencesKey("developerMode")
@@ -32,6 +36,12 @@ private val timelineMediaPreviewValueKey = stringPreferencesKey("timelineMediaPr
 private val liveLocationMinimumDistanceUpdateKey = intPreferencesKey("liveLocationMinimumDistanceUpdate")
 private val logLevelKey = stringPreferencesKey("logLevel")
 private val traceLogPacksKey = stringPreferencesKey("traceLogPacks")
+private val messageSoundUriKey = stringPreferencesKey("notificationMessageSoundUri")
+private val messageSoundChannelVersionKey = intPreferencesKey("notificationMessageSoundChannelVersion")
+private val messageSoundDisplayNameKey = stringPreferencesKey("notificationMessageSoundDisplayName")
+private val callRingtoneUriKey = stringPreferencesKey("notificationCallRingtoneUri")
+private val callRingtoneChannelVersionKey = intPreferencesKey("notificationCallRingtoneChannelVersion")
+private val callRingtoneDisplayNameKey = stringPreferencesKey("notificationCallRingtoneDisplayName")
 
 @ContributesBinding(AppScope::class)
 class DefaultAppPreferencesStore(
@@ -158,6 +168,75 @@ class DefaultAppPreferencesStore(
         }
     }
 
+    override fun getMessageSoundFlow(): Flow<NotificationSound> {
+        return store.data.map { prefs -> NotificationSound.fromStored(prefs[messageSoundUriKey]) }
+    }
+
+    override suspend fun setMessageSoundAndIncrementVersion(sound: NotificationSound, title: String?): Int {
+        var newVersion = 0
+        store.edit { prefs ->
+            val stored = sound.toStored()
+            if (stored != null) {
+                prefs[messageSoundUriKey] = stored
+            } else {
+                prefs.remove(messageSoundUriKey)
+            }
+            // Clear title on non-Custom so the picker doesn't show a stale label after a revert.
+            if (sound is NotificationSound.Custom && !title.isNullOrBlank()) {
+                prefs[messageSoundDisplayNameKey] = title
+            } else {
+                prefs.remove(messageSoundDisplayNameKey)
+            }
+            newVersion = (prefs[messageSoundChannelVersionKey] ?: 0) + 1
+            prefs[messageSoundChannelVersionKey] = newVersion
+        }
+        return newVersion
+    }
+
+    override fun getMessageSoundDisplayNameFlow(): Flow<String?> {
+        return store.data.map { prefs -> prefs[messageSoundDisplayNameKey] }
+    }
+
+    override fun getCallRingtoneFlow(): Flow<NotificationSound> {
+        return store.data.map { prefs -> NotificationSound.fromStored(prefs[callRingtoneUriKey]) }
+    }
+
+    override suspend fun setCallRingtoneAndIncrementVersion(sound: NotificationSound, title: String?): Int {
+        var newVersion = 0
+        store.edit { prefs ->
+            val stored = sound.toStored()
+            if (stored != null) {
+                prefs[callRingtoneUriKey] = stored
+            } else {
+                prefs.remove(callRingtoneUriKey)
+            }
+            if (sound is NotificationSound.Custom && !title.isNullOrBlank()) {
+                prefs[callRingtoneDisplayNameKey] = title
+            } else {
+                prefs.remove(callRingtoneDisplayNameKey)
+            }
+            newVersion = (prefs[callRingtoneChannelVersionKey] ?: 0) + 1
+            prefs[callRingtoneChannelVersionKey] = newVersion
+        }
+        return newVersion
+    }
+
+    override fun getCallRingtoneDisplayNameFlow(): Flow<String?> {
+        return store.data.map { prefs -> prefs[callRingtoneDisplayNameKey] }
+    }
+
+    override suspend fun getNotificationSoundChannelConfig(): NotificationSoundChannelConfig {
+        val prefs = store.data.first()
+        return NotificationSoundChannelConfig(
+            messageSound = NotificationSound.fromStored(prefs[messageSoundUriKey]),
+            messageSoundVersion = prefs[messageSoundChannelVersionKey] ?: 0,
+            messageSoundDisplayName = prefs[messageSoundDisplayNameKey],
+            callRingtone = NotificationSound.fromStored(prefs[callRingtoneUriKey]),
+            callRingtoneVersion = prefs[callRingtoneChannelVersionKey] ?: 0,
+            callRingtoneDisplayName = prefs[callRingtoneDisplayNameKey],
+        )
+    }
+
     override suspend fun reset() {
         store.edit { it.clear() }
     }

libraries/preferences/test/src/main/kotlin/io/element/android/libraries/preferences/test/InMemoryAppPreferencesStore.kt

@@ -12,8 +12,11 @@ import io.element.android.libraries.matrix.api.media.MediaPreviewValue
 import io.element.android.libraries.matrix.api.tracing.LogLevel
 import io.element.android.libraries.matrix.api.tracing.TraceLogPack
 import io.element.android.libraries.preferences.api.store.AppPreferencesStore
+import io.element.android.libraries.preferences.api.store.NotificationSound
+import io.element.android.libraries.preferences.api.store.NotificationSoundChannelConfig
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.updateAndGet
 
 class InMemoryAppPreferencesStore(
     isDeveloperModeEnabled: Boolean = false,
@@ -23,16 +26,28 @@ class InMemoryAppPreferencesStore(
     theme: String? = null,
     liveLocationMinimumDistanceUpdate: Int = 10,
     logLevel: LogLevel = LogLevel.INFO,
-    traceLockPacks: Set<TraceLogPack> = emptySet(),
+    traceLogPacks: Set<TraceLogPack> = emptySet(),
+    messageSound: NotificationSound = NotificationSound.SystemDefault,
+    messageSoundChannelVersion: Int = 0,
+    messageSoundDisplayName: String? = null,
+    callRingtone: NotificationSound = NotificationSound.SystemDefault,
+    callRingtoneChannelVersion: Int = 0,
+    callRingtoneDisplayName: String? = null,
 ) : AppPreferencesStore {
     private val isDeveloperModeEnabled = MutableStateFlow(isDeveloperModeEnabled)
     private val customElementCallBaseUrl = MutableStateFlow(customElementCallBaseUrl)
     private val theme = MutableStateFlow(theme)
     private val liveLocationMinimumDistanceUpdate = MutableStateFlow(liveLocationMinimumDistanceUpdate)
     private val logLevel = MutableStateFlow(logLevel)
-    private val tracingLogPacks = MutableStateFlow(traceLockPacks)
+    private val tracingLogPacks = MutableStateFlow(traceLogPacks)
     private val hideInviteAvatars = MutableStateFlow(hideInviteAvatars)
     private val timelineMediaPreviewValue = MutableStateFlow(timelineMediaPreviewValue)
+    private val messageSound = MutableStateFlow(messageSound)
+    private val messageSoundChannelVersion = MutableStateFlow(messageSoundChannelVersion)
+    private val messageSoundDisplayName = MutableStateFlow(messageSoundDisplayName)
+    private val callRingtone = MutableStateFlow(callRingtone)
+    private val callRingtoneChannelVersion = MutableStateFlow(callRingtoneChannelVersion)
+    private val callRingtoneDisplayName = MutableStateFlow(callRingtoneDisplayName)
 
     override suspend fun setDeveloperModeEnabled(enabled: Boolean) {
         isDeveloperModeEnabled.value = enabled
@@ -102,6 +117,45 @@ class InMemoryAppPreferencesStore(
         return tracingLogPacks
     }
 
+    override fun getMessageSoundFlow(): Flow<NotificationSound> {
+        return messageSound
+    }
+
+    override suspend fun setMessageSoundAndIncrementVersion(sound: NotificationSound, title: String?): Int {
+        messageSound.value = sound
+        messageSoundDisplayName.value = if (sound is NotificationSound.Custom && !title.isNullOrBlank()) title else null
+        return messageSoundChannelVersion.updateAndGet { it + 1 }
+    }
+
+    override fun getMessageSoundDisplayNameFlow(): Flow<String?> {
+        return messageSoundDisplayName
+    }
+
+    override fun getCallRingtoneFlow(): Flow<NotificationSound> {
+        return callRingtone
+    }
+
+    override suspend fun setCallRingtoneAndIncrementVersion(sound: NotificationSound, title: String?): Int {
+        callRingtone.value = sound
+        callRingtoneDisplayName.value = if (sound is NotificationSound.Custom && !title.isNullOrBlank()) title else null
+        return callRingtoneChannelVersion.updateAndGet { it + 1 }
+    }
+
+    override fun getCallRingtoneDisplayNameFlow(): Flow<String?> {
+        return callRingtoneDisplayName
+    }
+
+    override suspend fun getNotificationSoundChannelConfig(): NotificationSoundChannelConfig {
+        return NotificationSoundChannelConfig(
+            messageSound = messageSound.value,
+            messageSoundVersion = messageSoundChannelVersion.value,
+            messageSoundDisplayName = messageSoundDisplayName.value,
+            callRingtone = callRingtone.value,
+            callRingtoneVersion = callRingtoneChannelVersion.value,
+            callRingtoneDisplayName = callRingtoneDisplayName.value,
+        )
+    }
+
     override suspend fun reset() {
         // No op
     }

libraries/push/api/build.gradle.kts

@@ -20,5 +20,6 @@ dependencies {
     implementation(projects.libraries.designsystem)
     implementation(projects.libraries.matrix.api)
     implementation(projects.libraries.matrixmedia.api)
+    implementation(projects.libraries.preferences.api)
     implementation(projects.libraries.pushproviders.api)
 }

libraries/push/api/src/main/kotlin/io/element/android/libraries/push/api/notifications/NotificationSoundUpdater.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.api.notifications
+
+import io.element.android.libraries.preferences.api.store.NotificationSound
+
+/**
+ * Reads and writes the sound on the message / ringing-call channels. Writes create a new
+ * versioned channel because Android forbids mutating sound after creation.
+ */
+interface NotificationSoundUpdater {
+    fun recreateNoisyChannel(sound: NotificationSound, version: Int)
+
+    fun recreateRingingCallChannel(sound: NotificationSound, version: Int)
+
+    /** Current channel sound classified into [NotificationSound]. Null when the channel doesn't exist. */
+    suspend fun readNoisyChannelSound(): NotificationSound?
+
+    /** See [readNoisyChannelSound]. */
+    suspend fun readRingingCallChannelSound(): NotificationSound?
+}

libraries/push/api/src/main/kotlin/io/element/android/libraries/push/api/notifications/SoundDisplayNameResolver.kt

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.api.notifications
+
+/**
+ * Resolves the user-facing title of a custom notification sound URI (the title shown by the
+ * system ringtone picker). Lifts the [android.media.RingtoneManager] side effect out of UI code
+ * so views and presenters stay testable.
+ */
+interface SoundDisplayNameResolver {
+    /** Returns the title of the ringtone at [uri], or null if it cannot be resolved. */
+    suspend fun resolveCustomSoundTitle(uri: String): String?
+}

libraries/push/api/src/main/kotlin/io/element/android/libraries/push/api/notifications/sound/NotificationSoundCopier.kt

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.api.notifications.sound
+
+/**
+ * Copies a picked notification sound into app-private storage and re-exposes it via the app's
+ * FileProvider, so the persisted reference outlives the original source.
+ */
+interface NotificationSoundCopier {
+    suspend fun copyToAppFiles(sourceUriString: String, slot: SoundSlot): CopyResult
+
+    /**
+     * Removes any previously copied file for [slot] from app-private storage. No-op when no file
+     * exists. Call this when persisting a non-[NotificationSound.Custom] pick (SystemDefault /
+     * Silent) so the previous Custom copy doesn't linger as orphaned bytes — [copyToAppFiles]
+     * already sweeps stale files inline for Custom-to-Custom transitions.
+     */
+    suspend fun deleteStoredSoundFor(slot: SoundSlot)
+
+    enum class SoundSlot { Message, Call }
+
+    sealed interface CopyResult {
+        /**
+         * @property fileProviderUriString FileProvider URI to persist as the channel sound.
+         * @property displayName [android.media.Ringtone.getTitle] for the source, or null. The
+         * picker substitutes a localised fallback label, so localisation stays in the UI layer.
+         */
+        data class Success(val fileProviderUriString: String, val displayName: String?) : CopyResult
+
+        /** [android.media.RingtoneManager] could not open the source URI as a Ringtone. */
+        data object UnplayableSource : CopyResult
+
+        /** The bytes copied successfully, but the resulting file is not a playable Ringtone. */
+        data object UnplayableCopy : CopyResult
+
+        /** Source exceeded the 5 MB cap. */
+        data object FileTooLarge : CopyResult
+
+        /** Any other I/O or unexpected failure. */
+        data class Failure(val cause: Throwable) : CopyResult
+    }
+}

libraries/push/impl/build.gradle.kts

@@ -57,6 +57,7 @@ dependencies {
     implementation(projects.libraries.uiStrings)
     implementation(projects.libraries.troubleshoot.api)
     implementation(projects.libraries.workmanager.api)
+    implementation(projects.features.announcement.api)
     implementation(projects.features.call.api)
     implementation(projects.features.enterprise.api)
     implementation(projects.features.lockscreen.api)
@@ -80,6 +81,7 @@ dependencies {
     testImplementation(projects.libraries.pushstore.test)
     testImplementation(projects.libraries.troubleshoot.test)
     testImplementation(projects.libraries.workmanager.test)
+    testImplementation(projects.features.announcement.test)
     testImplementation(projects.features.call.test)
     testImplementation(projects.features.enterprise.test)
     testImplementation(projects.features.lockscreen.test)

libraries/push/impl/src/main/kotlin/io/element/android/libraries/push/impl/notifications/DefaultSoundDisplayNameResolver.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.impl.notifications
+
+import android.content.Context
+import android.media.RingtoneManager
+import androidx.core.net.toUri
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import io.element.android.libraries.core.extensions.runCatchingExceptions
+import io.element.android.libraries.di.annotations.ApplicationContext
+import io.element.android.libraries.push.api.notifications.SoundDisplayNameResolver
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+
+@ContributesBinding(AppScope::class)
+class DefaultSoundDisplayNameResolver(
+    @ApplicationContext private val context: Context,
+) : SoundDisplayNameResolver {
+    override suspend fun resolveCustomSoundTitle(uri: String): String? = withContext(Dispatchers.IO) {
+        val parsed = runCatchingExceptions { uri.toUri() }.getOrNull() ?: return@withContext null
+        // Probing our own FileProvider URI yields the internal filename ("call_sound.ogg"),
+        // not a user-meaningful tone name — better to fall through to the localised "Custom"
+        // label in the UI.
+        if (parsed.authority == context.notificationSoundFileProviderAuthority()) return@withContext null
+        runCatchingExceptions {
+            RingtoneManager.getRingtone(context, parsed)?.getTitle(context)
+        }.getOrNull()
+    }
+}

libraries/push/impl/src/main/kotlin/io/element/android/libraries/push/impl/notifications/NotificationSoundFileProviderAuthority.kt

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.impl.notifications
+
+import android.content.Context
+
+// Mirrors the FileProvider authority declared in AndroidManifest.xml as
+// `${applicationId}.fileprovider`. Kept here so the resolver's skip-rule and the copier's URI
+// construction never drift apart.
+internal const val NOTIFICATION_SOUND_FILE_PROVIDER_AUTHORITY_SUFFIX = ".fileprovider"
+
+internal fun Context.notificationSoundFileProviderAuthority(): String =
+    packageName + NOTIFICATION_SOUND_FILE_PROVIDER_AUTHORITY_SUFFIX

libraries/push/impl/src/main/kotlin/io/element/android/libraries/push/impl/notifications/channels/NotificationChannels.kt

@@ -10,6 +10,7 @@ package io.element.android.libraries.push.impl.notifications.channels
 
 import android.content.ContentResolver
 import android.content.Context
+import android.content.Intent
 import android.media.AudioAttributes
 import android.media.AudioAttributes.USAGE_NOTIFICATION
 import android.media.AudioManager
@@ -19,28 +20,50 @@ import android.provider.Settings
 import androidx.annotation.ChecksSdkIntAtLeast
 import androidx.core.app.NotificationChannelCompat
 import androidx.core.app.NotificationManagerCompat
+import androidx.core.net.toUri
 import dev.zacsweers.metro.AppScope
 import dev.zacsweers.metro.ContributesBinding
 import dev.zacsweers.metro.SingleIn
+import dev.zacsweers.metro.binding
 import io.element.android.appconfig.NotificationConfig
 import io.element.android.features.enterprise.api.EnterpriseService
+import io.element.android.libraries.core.extensions.runCatchingExceptions
 import io.element.android.libraries.di.annotations.ApplicationContext
 import io.element.android.libraries.matrix.api.core.SessionId
+import io.element.android.libraries.preferences.api.store.AppPreferencesStore
+import io.element.android.libraries.preferences.api.store.NotificationSound
+import io.element.android.libraries.push.api.notifications.NotificationSoundUpdater
 import io.element.android.libraries.push.impl.R
 import io.element.android.services.toolbox.api.strings.StringProvider
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.withContext
+import timber.log.Timber
 
 /* ==========================================================================================
  * IDs for channels
  * ========================================================================================== */
 internal const val SILENT_NOTIFICATION_CHANNEL_ID = "DEFAULT_SILENT_NOTIFICATION_CHANNEL_ID_V2"
-internal const val NOISY_NOTIFICATION_CHANNEL_ID = "DEFAULT_NOISY_NOTIFICATION_CHANNEL_ID_V2"
+internal const val NOISY_NOTIFICATION_CHANNEL_ID_BASE = "DEFAULT_NOISY_NOTIFICATION_CHANNEL_ID_V2"
 internal const val CALL_NOTIFICATION_CHANNEL_ID = "CALL_NOTIFICATION_CHANNEL_ID_V3"
-internal const val RINGING_CALL_NOTIFICATION_CHANNEL_ID = "RINGING_CALL_NOTIFICATION_CHANNEL_ID"
+internal const val RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE = "RINGING_CALL_NOTIFICATION_CHANNEL_ID"
+
+private fun versionedChannelId(base: String, version: Int): String =
+    if (version <= 0) base else "${base}_v$version"
+
+internal fun noisyNotificationChannelId(version: Int): String =
+    versionedChannelId(NOISY_NOTIFICATION_CHANNEL_ID_BASE, version)
+
+internal fun ringingCallNotificationChannelId(version: Int): String =
+    versionedChannelId(RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE, version)
 
 /**
  * on devices >= android O, we need to define a channel for each notifications.
+ *
+ * Extends [NotificationSoundUpdater] so consumers can re-create the noisy and ringing-call
+ * channels when the user picks a new sound URI in settings.
  */
-interface NotificationChannels {
+interface NotificationChannels : NotificationSoundUpdater {
     /**
      * Get the channel for incoming call.
      * @param ring true if the device should ring when receiving the call.
@@ -66,14 +89,22 @@ interface NotificationChannels {
 private fun supportNotificationChannels() = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O
 
 @SingleIn(AppScope::class)
-@ContributesBinding(AppScope::class)
+@ContributesBinding(AppScope::class, binding = binding<NotificationChannels>())
+@ContributesBinding(AppScope::class, binding = binding<NotificationSoundUpdater>())
 class DefaultNotificationChannels(
     private val notificationManager: NotificationManagerCompat,
     private val stringProvider: StringProvider,
     @ApplicationContext
     private val context: Context,
     private val enterpriseService: EnterpriseService,
+    private val appPreferencesStore: AppPreferencesStore,
 ) : NotificationChannels {
+    @Volatile private var currentNoisyChannelId: String = NOISY_NOTIFICATION_CHANNEL_ID_BASE
+    @Volatile private var currentRingingCallChannelId: String = RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE
+
+    // Serializes concurrent recreate* calls; readers stay lock-free via @Volatile on the id fields.
+    private val recreateLock = Any()
+
     init {
         createNotificationChannels()
     }
@@ -88,9 +119,27 @@ class DefaultNotificationChannels(
 
         val accentColor = NotificationConfig.NOTIFICATION_ACCENT_COLOR
 
+        // Single-snapshot read; keep this path minimal — extra ContentResolver lookups here would
+        // risk a cold-start ANR.
+        val config = runBlocking {
+            val initial = appPreferencesStore.getNotificationSoundChannelConfig()
+            // Pre-dialog builds mapped the noisy `SystemDefault` to our bundled message.mp3.
+            // Now `SystemDefault` means Android's system tone, so untouched legacy state would
+            // silently flip sound. Promote it to `ElementDefault` once, gated on version==0 so the
+            // migration is idempotent.
+            if (initial.messageSoundVersion == 0 && initial.messageSound == NotificationSound.SystemDefault) {
+                appPreferencesStore.setMessageSoundAndIncrementVersion(NotificationSound.ElementDefault, title = null)
+                appPreferencesStore.getNotificationSoundChannelConfig()
+            } else {
+                initial
+            }
+        }
+
+        currentNoisyChannelId = noisyNotificationChannelId(config.messageSoundVersion)
+        currentRingingCallChannelId = ringingCallNotificationChannelId(config.callRingtoneVersion)
+
         // Migration - the noisy channel was deleted and recreated when sound preference was changed (id was DEFAULT_NOISY_NOTIFICATION_CHANNEL_ID_BASE
         // + currentTimeMillis).
-        // Now the sound can only be change directly in system settings, so for app upgrading we are deleting this former channel
         // Starting from this version the channel will not be dynamic
         for (channel in notificationManager.notificationChannels) {
             val channelId = channel.id
@@ -111,30 +160,19 @@ class DefaultNotificationChannels(
                 notificationManager.deleteNotificationChannel(channelId)
             }
         }
+        // Drop older versioned channels; only the current one remains.
+        deleteStaleVersionedChannels(NOISY_NOTIFICATION_CHANNEL_ID_BASE, currentNoisyChannelId)
+        deleteStaleVersionedChannels(RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE, currentRingingCallChannelId)
 
         // Default notification importance: shows everywhere, makes noise, but does not visually intrude.
+        val noisySoundUri = resolveNoisySoundUri(config.messageSound)
+        grantSoundUriToSystem(noisySoundUri)
         notificationManager.createNotificationChannel(
-            NotificationChannelCompat.Builder(
+            buildNoisyChannel(
-                NOISY_NOTIFICATION_CHANNEL_ID,
+                channelId = currentNoisyChannelId,
-                NotificationManagerCompat.IMPORTANCE_DEFAULT
+                soundUri = noisySoundUri,
+                accentColor = accentColor,
             )
-                .setSound(
-                    Uri.Builder()
-                        .scheme(ContentResolver.SCHEME_ANDROID_RESOURCE)
-                        // Strangely we have to provide a "//" before the package name
-                        .path("//" + context.packageName + "/" + R.raw.message)
-                        .build(),
-                    AudioAttributes.Builder()
-                        .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
-                        .setUsage(USAGE_NOTIFICATION)
-                        .build(),
-                )
-                .setName(stringProvider.getString(R.string.notification_channel_noisy).ifEmpty { "Noisy notifications" })
-                .setDescription(stringProvider.getString(R.string.notification_channel_noisy))
-                .setVibrationEnabled(true)
-                .setLightsEnabled(true)
-                .setLightColor(accentColor)
-                .build()
         )
 
         // Low notification importance: shows everywhere, but is not intrusive.
@@ -166,40 +204,205 @@ class DefaultNotificationChannels(
         )
 
         // Register a channel for incoming call notifications which will ring the device when received
+        val ringingSoundUri = resolveRingingSoundUri(config.callRingtone)
+        grantSoundUriToSystem(ringingSoundUri)
         notificationManager.createNotificationChannel(
-            NotificationChannelCompat.Builder(
+            buildRingingCallChannel(
-                RINGING_CALL_NOTIFICATION_CHANNEL_ID,
+                channelId = currentRingingCallChannelId,
-                NotificationManagerCompat.IMPORTANCE_MAX,
+                soundUri = ringingSoundUri,
+                accentColor = accentColor,
             )
-                .setName(stringProvider.getString(R.string.notification_channel_ringing_calls).ifEmpty { "Ringing calls" })
+        )
+    }
+
+    private fun buildNoisyChannel(channelId: String, soundUri: Uri?, accentColor: Int): NotificationChannelCompat {
+        val builder = NotificationChannelCompat.Builder(channelId, NotificationManagerCompat.IMPORTANCE_DEFAULT)
+            .setName(stringProvider.getString(R.string.notification_channel_noisy).ifEmpty { "Noisy notifications" })
+            .setDescription(stringProvider.getString(R.string.notification_channel_noisy))
             .setVibrationEnabled(true)
-                .setSound(
+            .setLightsEnabled(true)
-                    Settings.System.DEFAULT_RINGTONE_URI,
+            .setLightColor(accentColor)
+        if (soundUri != null) {
+            builder.setSound(
+                soundUri,
+                AudioAttributes.Builder()
+                    .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
+                    .setUsage(USAGE_NOTIFICATION)
+                    .build(),
+            )
+        } else {
+            builder.setSound(null, null)
+        }
+        return builder.build()
+    }
+
+    private fun buildRingingCallChannel(channelId: String, soundUri: Uri?, accentColor: Int): NotificationChannelCompat {
+        val builder = NotificationChannelCompat.Builder(channelId, NotificationManagerCompat.IMPORTANCE_MAX)
+            .setName(stringProvider.getString(R.string.notification_channel_ringing_calls).ifEmpty { "Ringing calls" })
+            .setDescription(stringProvider.getString(R.string.notification_channel_ringing_calls))
+            .setVibrationEnabled(true)
+            .setLightsEnabled(true)
+            .setLightColor(accentColor)
+        if (soundUri != null) {
+            builder.setSound(
+                soundUri,
                 AudioAttributes.Builder()
                     .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                     .setLegacyStreamType(AudioManager.STREAM_RING)
                     .setUsage(AudioAttributes.USAGE_NOTIFICATION_RINGTONE)
                     .build()
             )
-                .setDescription(stringProvider.getString(R.string.notification_channel_ringing_calls))
+        } else {
-                .setLightsEnabled(true)
+            builder.setSound(null, null)
-                .setLightColor(accentColor)
+        }
-                .build()
+        return builder.build()
-        )
+    }
+
+    private fun resolveNoisySoundUri(sound: NotificationSound): Uri? = when (sound) {
+        NotificationSound.Silent -> null
+        NotificationSound.SystemDefault -> Settings.System.DEFAULT_NOTIFICATION_URI
+        NotificationSound.ElementDefault -> bundledMessageSoundUri()
+        NotificationSound.ElementFade -> bundledFadeSoundUri()
+        is NotificationSound.Custom -> parseUriOrFallback(sound.uri) { bundledMessageSoundUri() }
+    }
+
+    private fun resolveRingingSoundUri(sound: NotificationSound): Uri? = when (sound) {
+        NotificationSound.Silent -> null
+        // The ringing channel has no bundled tone — treat ElementDefault and ElementFade like SystemDefault here.
+        NotificationSound.SystemDefault,
+        NotificationSound.ElementDefault,
+        NotificationSound.ElementFade -> Settings.System.DEFAULT_RINGTONE_URI
+        is NotificationSound.Custom -> parseUriOrFallback(sound.uri) { Settings.System.DEFAULT_RINGTONE_URI }
+    }
+
+    private fun bundledMessageSoundUri(): Uri =
+        "${ContentResolver.SCHEME_ANDROID_RESOURCE}://${context.packageName}/${R.raw.message}".toUri()
+
+    private fun bundledFadeSoundUri(): Uri =
+        "${ContentResolver.SCHEME_ANDROID_RESOURCE}://${context.packageName}/${R.raw.element_fade}".toUri()
+
+    /**
+     * Lets system_server ("android") and SystemUI read our FileProvider sound URI; no-op otherwise.
+     * SystemUI hosts the lock-screen notification surface on most OEMs, so a missing grant there
+     * silently mutes ringtones when the device is locked.
+     */
+    private fun grantSoundUriToSystem(uri: Uri?) {
+        if (uri == null || uri.scheme != ContentResolver.SCHEME_CONTENT) return
+        for (pkg in arrayOf("android", "com.android.systemui")) {
+            runCatchingExceptions {
+                context.grantUriPermission(pkg, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION)
+            }.onFailure { Timber.w(it, "grantUriPermission(%s) failed for notification sound", pkg) }
+        }
+    }
+
+    /** Parses [uriString], or returns [fallback] (the SystemDefault URI) on failure. */
+    private inline fun parseUriOrFallback(uriString: String, fallback: () -> Uri): Uri =
+        runCatchingExceptions { uriString.toUri() }
+            .getOrElse {
+                // Don't pass the throwable: legacy persisted URIs may carry SAF auth tokens.
+                Timber.w("Failed to parse persisted sound URI; falling back to default cause=%s", it::class.simpleName)
+                fallback()
+            }
+
+    private fun deleteStaleVersionedChannels(baseId: String, currentId: String) {
+        if (!supportNotificationChannels()) return
+        for (channel in notificationManager.notificationChannels) {
+            val id = channel.id
+            // Match either the unversioned base ID or any "${baseId}_v<n>" variant.
+            val isBaseOrVersioned = id == baseId || id.startsWith("${baseId}_v")
+            if (isBaseOrVersioned && id != currentId) {
+                notificationManager.deleteNotificationChannel(id)
+            }
+        }
     }
 
     override fun getChannelForIncomingCall(ring: Boolean): String {
-        return if (ring) RINGING_CALL_NOTIFICATION_CHANNEL_ID else CALL_NOTIFICATION_CHANNEL_ID
+        return if (ring) currentRingingCallChannelId else CALL_NOTIFICATION_CHANNEL_ID
     }
 
     override fun getChannelIdForMessage(sessionId: SessionId, noisy: Boolean): String {
         return if (noisy) {
             enterpriseService.getNoisyNotificationChannelId(sessionId)
-                ?: NOISY_NOTIFICATION_CHANNEL_ID
+                ?: currentNoisyChannelId
         } else {
             SILENT_NOTIFICATION_CHANNEL_ID
         }
     }
 
-    override fun getChannelIdForTest(): String = NOISY_NOTIFICATION_CHANNEL_ID
+    override fun getChannelIdForTest(): String = currentNoisyChannelId
+
+    override fun recreateNoisyChannel(sound: NotificationSound, version: Int) {
+        if (!supportNotificationChannels()) return
+        synchronized(recreateLock) {
+            val accentColor = NotificationConfig.NOTIFICATION_ACCENT_COLOR
+            val newChannelId = noisyNotificationChannelId(version)
+            val soundUri = resolveNoisySoundUri(sound)
+            grantSoundUriToSystem(soundUri)
+            // Create channel before publishing the id: a reader landing between the assignment and
+            // the create call would notify() against a missing id, which Android silently drops.
+            notificationManager.createNotificationChannel(
+                buildNoisyChannel(newChannelId, soundUri, accentColor)
+            )
+            currentNoisyChannelId = newChannelId
+            deleteStaleVersionedChannels(NOISY_NOTIFICATION_CHANNEL_ID_BASE, newChannelId)
+        }
+    }
+
+    override fun recreateRingingCallChannel(sound: NotificationSound, version: Int) {
+        if (!supportNotificationChannels()) return
+        synchronized(recreateLock) {
+            val accentColor = NotificationConfig.NOTIFICATION_ACCENT_COLOR
+            val newChannelId = ringingCallNotificationChannelId(version)
+            val soundUri = resolveRingingSoundUri(sound)
+            grantSoundUriToSystem(soundUri)
+            // See recreateNoisyChannel: the channel must exist before the id is published.
+            notificationManager.createNotificationChannel(
+                buildRingingCallChannel(newChannelId, soundUri, accentColor)
+            )
+            currentRingingCallChannelId = newChannelId
+            deleteStaleVersionedChannels(RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE, newChannelId)
+        }
+    }
+
+    override suspend fun readNoisyChannelSound(): NotificationSound? {
+        return readChannelSound(
+            channelId = currentNoisyChannelId,
+            bundledUri = bundledMessageSoundUri(),
+            bundledFadeUri = bundledFadeSoundUri(),
+            systemDefaultUri = Settings.System.DEFAULT_NOTIFICATION_URI,
+        )
+    }
+
+    override suspend fun readRingingCallChannelSound(): NotificationSound? {
+        return readChannelSound(
+            channelId = currentRingingCallChannelId,
+            bundledUri = null,
+            bundledFadeUri = null,
+            systemDefaultUri = Settings.System.DEFAULT_RINGTONE_URI,
+        )
+    }
+
+    /**
+     * Classifies the channel's sound URI: null → Silent, bundled → ElementDefault, bundled fade →
+     * ElementFade, system default → SystemDefault, else → Custom. Both bundled URIs are nullable
+     * because the ringing channel has no bundled tones.
+     */
+    private suspend fun readChannelSound(
+        channelId: String,
+        bundledUri: Uri?,
+        bundledFadeUri: Uri?,
+        systemDefaultUri: Uri,
+    ): NotificationSound? {
+        if (!supportNotificationChannels()) return null
+        val channel = withContext(Dispatchers.IO) {
+            notificationManager.getNotificationChannel(channelId)
+        } ?: return null
+        return when (val sound = channel.sound) {
+            null -> NotificationSound.Silent
+            bundledUri -> NotificationSound.ElementDefault
+            bundledFadeUri -> NotificationSound.ElementFade
+            systemDefaultUri -> NotificationSound.SystemDefault
+            else -> NotificationSound.Custom(sound.toString())
+        }
+    }
 }

libraries/push/impl/src/main/kotlin/io/element/android/libraries/push/impl/notifications/sound/DefaultNotificationSoundCopier.kt

@@ -0,0 +1,208 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.impl.notifications.sound
+
+import android.content.ContentResolver
+import android.content.Context
+import android.media.RingtoneManager
+import android.net.Uri
+import android.provider.OpenableColumns
+import android.webkit.MimeTypeMap
+import androidx.core.content.FileProvider
+import androidx.core.net.toUri
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import io.element.android.libraries.core.extensions.runCatchingExceptions
+import io.element.android.libraries.di.annotations.ApplicationContext
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier.CopyResult
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier.SoundSlot
+import io.element.android.libraries.push.impl.notifications.notificationSoundFileProviderAuthority
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.withContext
+import timber.log.Timber
+import java.io.File
+import java.io.IOException
+import java.io.InputStream
+
+private const val MAX_BYTES = 5L * 1024 * 1024
+private const val DIRECTORY_NAME = "notification_sounds"
+private const val FALLBACK_EXTENSION = "bin"
+private const val COPY_BUFFER_SIZE = 8 * 1024
+private const val MAX_DISPLAY_NAME_LENGTH = 256
+
+// Defence-in-depth: we only ever expect URIs from the system ringtone picker (content://) or
+// the bundled resource (android.resource://). Reject anything else before doing I/O so a future
+// caller that constructs a NotificationSound.Custom from an untrusted intent can't trick the
+// copier into reading file:// or unrelated providers.
+private val ALLOWED_SOURCE_SCHEMES = setOf(
+    ContentResolver.SCHEME_CONTENT,
+    ContentResolver.SCHEME_ANDROID_RESOURCE,
+)
+
+@ContributesBinding(AppScope::class)
+class DefaultNotificationSoundCopier(
+    @ApplicationContext private val context: Context,
+) : NotificationSoundCopier {
+    // Per-slot serialization: concurrent picks for the same slot would race on `<slot>.tmp`.
+    private val slotMutexes = SoundSlot.entries.associateWith { Mutex() }
+
+    override suspend fun copyToAppFiles(sourceUriString: String, slot: SoundSlot): CopyResult = withContext(Dispatchers.IO) {
+        slotMutexes.getValue(slot).withLock {
+            runCatchingExceptions { performCopy(sourceUriString, slot) }
+                .getOrElse { ex ->
+                    // Don't pass the throwable to Timber: SAF/MediaProvider exceptions sometimes
+                    // embed the source URI (which can carry short-lived auth tokens).
+                    Timber.w("Notification sound copy failed for slot=%s cause=%s", slot, ex::class.simpleName)
+                    CopyResult.Failure(ex)
+                }
+        }
+    }
+
+    override suspend fun deleteStoredSoundFor(slot: SoundSlot) {
+        withContext(Dispatchers.IO) {
+            slotMutexes.getValue(slot).withLock {
+                val dir = File(context.filesDir, DIRECTORY_NAME)
+                if (!dir.exists()) return@withLock
+                val slotBase = slotBaseFor(slot)
+                dir.listFiles { f -> f.isFile && f.name.startsWith("$slotBase.") }
+                    ?.forEach { stale ->
+                        if (!stale.delete()) {
+                            Timber.w("Could not remove stored slot file %s", stale.name)
+                        }
+                    }
+            }
+        }
+    }
+
+    private fun slotBaseFor(slot: SoundSlot): String = when (slot) {
+        SoundSlot.Message -> "message_sound"
+        SoundSlot.Call -> "call_sound"
+    }
+
+    private fun performCopy(sourceUriString: String, slot: SoundSlot): CopyResult {
+        val source = sourceUriString.toUri()
+        if (source.scheme !in ALLOWED_SOURCE_SCHEMES) return CopyResult.UnplayableSource
+        // Reject unplayable sources up front instead of persisting a known-broken pick.
+        val sourceRingtone = RingtoneManager.getRingtone(context, source)
+            ?: return CopyResult.UnplayableSource
+        // Capture the source's display name before copy — once persisted, the row only sees the
+        // FileProvider URI, where Ringtone.getTitle() would resolve to our internal filename
+        // (e.g. "call_sound.ogg"). RingtoneManager → MediaStore TITLE → OpenableColumns covers
+        // system tones, MediaStore-indexed audio, and SAF-picked files respectively. The value
+        // crosses our security boundary (foreign provider → persisted state → UI), so cap and
+        // sanitize it.
+        val displayName = (sourceRingtone.getTitle(context)?.takeUnless { it.isBlank() }
+            ?: queryOpenableDisplayName(source))
+            ?.let(::sanitizeDisplayName)
+
+        // MIME comes from an arbitrary content provider; refuse extensions outside the platform
+        // table to keep filenames bounded to notification_sounds/.
+        val mimeMap = MimeTypeMap.getSingleton()
+        val candidateExtension = mimeMap.getExtensionFromMimeType(context.contentResolver.getType(source))
+        val extension = candidateExtension
+            ?.takeIf { it.isNotBlank() && mimeMap.hasExtension(it) }
+            ?: FALLBACK_EXTENSION
+
+        val slotBase = slotBaseFor(slot)
+
+        val dir = File(context.filesDir, DIRECTORY_NAME).apply { mkdirs() }
+        val tmpFile = File(dir, "$slotBase.tmp").also { if (it.exists()) it.delete() }
+        val finalFile = File(dir, "$slotBase.$extension")
+
+        val inputStream = context.contentResolver.openInputStream(source)
+            ?: return CopyResult.UnplayableSource
+        val bytesCopied = try {
+            inputStream.use { input -> tmpFile.outputStream().buffered().use { out -> input.copyToCapped(out, MAX_BYTES) } }
+        } catch (_: SizeLimitExceeded) {
+            tmpFile.delete()
+            Timber.w("Notification sound copy aborted: source exceeds %d bytes (slot=%s)", MAX_BYTES, slot)
+            return CopyResult.FileTooLarge
+        }
+
+        // The finally below guarantees the temp file doesn't outlive a thrown probe / rename.
+        var committed = false
+        try {
+            // Probe through the FileProvider URI we'll actually persist (catches torn writes
+            // and OEM codec quirks).
+            val fileProviderUri = FileProvider.getUriForFile(
+                context,
+                context.notificationSoundFileProviderAuthority(),
+                tmpFile,
+            )
+            if (RingtoneManager.getRingtone(context, fileProviderUri) == null) {
+                return CopyResult.UnplayableCopy
+            }
+
+            // Sweep all `<slot>.*` so an extension change between picks doesn't leak orphans.
+            dir.listFiles { f -> f.isFile && f.name.startsWith("$slotBase.") && f.name != tmpFile.name }
+                ?.forEach { stale ->
+                    if (!stale.delete()) {
+                        Timber.w("Could not remove stale slot file %s", stale.name)
+                    }
+                }
+            if (!tmpFile.renameTo(finalFile)) {
+                return CopyResult.Failure(IOException("Could not rename temp file to ${finalFile.name}"))
+            }
+            committed = true
+
+            val finalUri = FileProvider.getUriForFile(
+                context,
+                context.notificationSoundFileProviderAuthority(),
+                finalFile,
+            )
+            Timber.d("Notification sound copied: slot=%s bytes=%d", slot, bytesCopied)
+            return CopyResult.Success(finalUri.toString(), displayName)
+        } finally {
+            if (!committed) tmpFile.delete()
+        }
+    }
+
+    private fun queryOpenableDisplayName(uri: Uri): String? {
+        return runCatchingExceptions {
+            context.contentResolver.query(uri, arrayOf(OpenableColumns.DISPLAY_NAME), null, null, null)
+                ?.use { cursor ->
+                    if (cursor.moveToFirst() && cursor.columnCount > 0) {
+                        cursor.getString(0)?.takeUnless { it.isBlank() }
+                    } else {
+                        null
+                    }
+                }
+        }.getOrNull()
+    }
+}
+
+internal fun sanitizeDisplayName(raw: String): String? {
+    // Display name comes from a foreign content provider; strip C0 / DEL control characters and
+    // cap length so a hostile or malformed value can't bloat persisted state or break UI rendering.
+    val cleaned = buildString(raw.length.coerceAtMost(MAX_DISPLAY_NAME_LENGTH)) {
+        for (ch in raw) {
+            if (length >= MAX_DISPLAY_NAME_LENGTH) break
+            if (ch.code >= 0x20 && ch.code != 0x7F) append(ch)
+        }
+    }.trim()
+    return cleaned.takeUnless { it.isEmpty() }
+}
+
+private class SizeLimitExceeded : IOException("Sound source exceeds the configured size limit")
+
+private fun InputStream.copyToCapped(out: java.io.OutputStream, maxBytes: Long): Long {
+    val buffer = ByteArray(COPY_BUFFER_SIZE)
+    var totalBytes = 0L
+    while (true) {
+        val read = read(buffer)
+        if (read == -1) break
+        totalBytes += read
+        if (totalBytes > maxBytes) throw SizeLimitExceeded()
+        out.write(buffer, 0, read)
+    }
+    out.flush()
+    return totalBytes
+}

libraries/push/impl/src/test/kotlin/io/element/android/libraries/push/impl/notifications/channels/FakeNotificationChannels.kt

@@ -9,11 +9,19 @@
 package io.element.android.libraries.push.impl.notifications.channels
 
 import io.element.android.libraries.matrix.api.core.SessionId
+import io.element.android.libraries.preferences.api.store.NotificationSound
+import io.element.android.tests.testutils.lambda.lambdaError
 
 class FakeNotificationChannels(
     var channelForIncomingCall: (ring: Boolean) -> String = { _ -> "" },
     var channelIdForMessage: (sessionId: SessionId, noisy: Boolean) -> String = { _, _ -> "" },
-    var channelIdForTest: () -> String = { "" }
+    var channelIdForTest: () -> String = { "" },
+    // Side-effecting recreates default to lambdaError (matching FakeNotificationSoundUpdater) so a
+    // test that doesn't expect a channel rebuild loudly fails instead of silently swallowing the call.
+    var recreateNoisyChannelLambda: (sound: NotificationSound, version: Int) -> Unit = { _, _ -> lambdaError() },
+    var recreateRingingCallChannelLambda: (sound: NotificationSound, version: Int) -> Unit = { _, _ -> lambdaError() },
+    var readNoisyChannelSoundLambda: () -> NotificationSound? = { null },
+    var readRingingCallChannelSoundLambda: () -> NotificationSound? = { null },
 ) : NotificationChannels {
     override fun getChannelForIncomingCall(ring: Boolean): String {
         return channelForIncomingCall(ring)
@@ -26,4 +34,16 @@ class FakeNotificationChannels(
     override fun getChannelIdForTest(): String {
         return channelIdForTest()
     }
+
+    override fun recreateNoisyChannel(sound: NotificationSound, version: Int) {
+        recreateNoisyChannelLambda(sound, version)
+    }
+
+    override fun recreateRingingCallChannel(sound: NotificationSound, version: Int) {
+        recreateRingingCallChannelLambda(sound, version)
+    }
+
+    override suspend fun readNoisyChannelSound(): NotificationSound? = readNoisyChannelSoundLambda()
+
+    override suspend fun readRingingCallChannelSound(): NotificationSound? = readRingingCallChannelSoundLambda()
 }

libraries/push/impl/src/test/kotlin/io/element/android/libraries/push/impl/notifications/channels/NotificationChannelsTest.kt

@@ -9,16 +9,23 @@
 package io.element.android.libraries.push.impl.notifications.channels
 
 import android.os.Build
+import android.provider.Settings
 import androidx.core.app.NotificationChannelCompat
 import androidx.core.app.NotificationManagerCompat
+import androidx.core.net.toUri
 import com.google.common.truth.Truth.assertThat
 import io.element.android.features.enterprise.api.EnterpriseService
 import io.element.android.features.enterprise.test.FakeEnterpriseService
 import io.element.android.libraries.matrix.test.A_SESSION_ID
+import io.element.android.libraries.preferences.api.store.AppPreferencesStore
+import io.element.android.libraries.preferences.api.store.NotificationSound
+import io.element.android.libraries.preferences.test.InMemoryAppPreferencesStore
 import io.element.android.services.toolbox.test.strings.FakeStringProvider
 import io.mockk.every
 import io.mockk.mockk
+import io.mockk.slot
 import io.mockk.verify
+import kotlinx.coroutines.test.runTest
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.robolectric.RobolectricTestRunner
@@ -45,7 +52,7 @@ class NotificationChannelsTest {
         val notificationChannels = createNotificationChannels()
 
         val ringingChannel = notificationChannels.getChannelForIncomingCall(ring = true)
-        assertThat(ringingChannel).isEqualTo(RINGING_CALL_NOTIFICATION_CHANNEL_ID)
+        assertThat(ringingChannel).isEqualTo(RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE)
 
         val normalChannel = notificationChannels.getChannelForIncomingCall(ring = false)
         assertThat(normalChannel).isEqualTo(CALL_NOTIFICATION_CHANNEL_ID)
@@ -59,7 +66,7 @@ class NotificationChannelsTest {
             ),
         )
         assertThat(notificationChannels.getChannelIdForMessage(sessionId = A_SESSION_ID, noisy = true))
-            .isEqualTo(NOISY_NOTIFICATION_CHANNEL_ID)
+            .isEqualTo(NOISY_NOTIFICATION_CHANNEL_ID_BASE)
         assertThat(notificationChannels.getChannelIdForMessage(sessionId = A_SESSION_ID, noisy = false))
             .isEqualTo(SILENT_NOTIFICATION_CHANNEL_ID)
     }
@@ -81,16 +88,418 @@ class NotificationChannelsTest {
     fun `getChannelIdForTest - returns the right channel`() {
         val notificationChannels = createNotificationChannels()
 
-        assertThat(notificationChannels.getChannelIdForTest()).isEqualTo(NOISY_NOTIFICATION_CHANNEL_ID)
+        assertThat(notificationChannels.getChannelIdForTest()).isEqualTo(NOISY_NOTIFICATION_CHANNEL_ID_BASE)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `init - reads persisted message version and seeds versioned channel id`() {
+        val notificationChannels = createNotificationChannels(
+            appPreferencesStore = InMemoryAppPreferencesStore(messageSoundChannelVersion = 3),
+            enterpriseService = FakeEnterpriseService(getNoisyNotificationChannelIdResult = { null }),
+        )
+        assertThat(notificationChannels.getChannelIdForTest()).isEqualTo("${NOISY_NOTIFICATION_CHANNEL_ID_BASE}_v3")
+        assertThat(notificationChannels.getChannelIdForMessage(sessionId = A_SESSION_ID, noisy = true))
+            .isEqualTo("${NOISY_NOTIFICATION_CHANNEL_ID_BASE}_v3")
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `init - reads persisted call ringtone version and seeds versioned channel id`() {
+        val notificationChannels = createNotificationChannels(
+            appPreferencesStore = InMemoryAppPreferencesStore(callRingtoneChannelVersion = 2),
+        )
+        assertThat(notificationChannels.getChannelForIncomingCall(ring = true))
+            .isEqualTo("${RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE}_v2")
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `recreateNoisyChannel - creates new versioned channel and updates current id`() {
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        channels.recreateNoisyChannel(sound = NotificationSound.Custom("content://media/internal/audio/media/42"), version = 7)
+
+        val expectedId = "${NOISY_NOTIFICATION_CHANNEL_ID_BASE}_v7"
+        assertThat(channels.getChannelIdForTest()).isEqualTo(expectedId)
+        verify { notificationManager.createNotificationChannel(match<NotificationChannelCompat> { it.id == expectedId }) }
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `recreateNoisyChannel - Silent produces channel with no sound`() {
+        val captured = slot<NotificationChannelCompat>()
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { createNotificationChannel(capture(captured)) } returns Unit
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        channels.recreateNoisyChannel(sound = NotificationSound.Silent, version = 1)
+
+        // The last captured channel (the recreated one) should have a null sound and the new id.
+        assertThat(captured.captured.id).isEqualTo("${NOISY_NOTIFICATION_CHANNEL_ID_BASE}_v1")
+        assertThat(captured.captured.sound).isNull()
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `recreateNoisyChannel - SystemDefault uses Android system notification URI`() {
+        val captured = slot<NotificationChannelCompat>()
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { createNotificationChannel(capture(captured)) } returns Unit
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        channels.recreateNoisyChannel(sound = NotificationSound.SystemDefault, version = 2)
+
+        assertThat(captured.captured.sound).isEqualTo(Settings.System.DEFAULT_NOTIFICATION_URI)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `recreateNoisyChannel - ElementDefault uses bundled message URI`() {
+        val captured = slot<NotificationChannelCompat>()
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { createNotificationChannel(capture(captured)) } returns Unit
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        channels.recreateNoisyChannel(sound = NotificationSound.ElementDefault, version = 1)
+
+        assertThat(captured.captured.sound?.scheme).isEqualTo("android.resource")
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `recreateNoisyChannel - ElementFade uses bundled fade URI`() {
+        val captured = slot<NotificationChannelCompat>()
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { createNotificationChannel(capture(captured)) } returns Unit
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        channels.recreateNoisyChannel(sound = NotificationSound.ElementFade, version = 1)
+
+        val context = RuntimeEnvironment.getApplication()
+        val expected = "android.resource://${context.packageName}/${io.element.android.libraries.push.impl.R.raw.element_fade}".toUri()
+        assertThat(captured.captured.sound).isEqualTo(expected)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `recreateNoisyChannel - deletes prior versioned channels`() {
+        val priorChannel = mockk<android.app.NotificationChannel>(relaxed = true) {
+            every { id } returns "${NOISY_NOTIFICATION_CHANNEL_ID_BASE}_v3"
+        }
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns listOf(priorChannel)
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        channels.recreateNoisyChannel(sound = NotificationSound.SystemDefault, version = 4)
+
+        verify { notificationManager.deleteNotificationChannel("${NOISY_NOTIFICATION_CHANNEL_ID_BASE}_v3") }
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `recreateRingingCallChannel - creates new versioned channel and updates current id`() {
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        channels.recreateRingingCallChannel(sound = NotificationSound.Custom("content://settings/system/ringtone"), version = 5)
+
+        val expectedId = "${RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE}_v5"
+        assertThat(channels.getChannelForIncomingCall(ring = true)).isEqualTo(expectedId)
+        verify { notificationManager.createNotificationChannel(match<NotificationChannelCompat> { it.id == expectedId }) }
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `recreateRingingCallChannel - Silent produces channel with no sound`() {
+        val captured = slot<NotificationChannelCompat>()
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { createNotificationChannel(capture(captured)) } returns Unit
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        channels.recreateRingingCallChannel(sound = NotificationSound.Silent, version = 1)
+
+        assertThat(captured.captured.id).isEqualTo("${RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE}_v1")
+        assertThat(captured.captured.sound).isNull()
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `recreate noisy then ringing produces both versioned channels with current ids`() {
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        channels.recreateNoisyChannel(sound = NotificationSound.Custom("content://a"), version = 5)
+        channels.recreateRingingCallChannel(sound = NotificationSound.Custom("content://b"), version = 7)
+
+        // Each recreate updates the corresponding currentId independently — the lock guarding
+        // recreate* against itself does not interfere across the two channel families.
+        assertThat(channels.getChannelIdForTest()).isEqualTo("${NOISY_NOTIFICATION_CHANNEL_ID_BASE}_v5")
+        assertThat(channels.getChannelForIncomingCall(ring = true)).isEqualTo("${RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE}_v7")
+        verify { notificationManager.createNotificationChannel(match<NotificationChannelCompat> { it.id == "${NOISY_NOTIFICATION_CHANNEL_ID_BASE}_v5" }) }
+        verify {
+            notificationManager.createNotificationChannel(
+            match<NotificationChannelCompat> { it.id == "${RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE}_v7" }
+        )
+        }
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `readNoisyChannelSound - returns Custom for non-default URI`() = runTest {
+        val customUri = "content://media/internal/audio/media/42".toUri()
+        val channel = mockk<android.app.NotificationChannel>(relaxed = true) {
+            every { sound } returns customUri
+        }
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { getNotificationChannel(NOISY_NOTIFICATION_CHANNEL_ID_BASE) } returns channel
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        val result = channels.readNoisyChannelSound()
+
+        assertThat(result).isEqualTo(NotificationSound.Custom(customUri.toString()))
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `readNoisyChannelSound - classifies the bundled message URI as ElementDefault`() = runTest {
+        val context = RuntimeEnvironment.getApplication()
+        val ourBundled = "android.resource://${context.packageName}/${io.element.android.libraries.push.impl.R.raw.message}".toUri()
+        val channel = mockk<android.app.NotificationChannel>(relaxed = true) {
+            every { sound } returns ourBundled
+        }
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { getNotificationChannel(NOISY_NOTIFICATION_CHANNEL_ID_BASE) } returns channel
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        val result = channels.readNoisyChannelSound()
+
+        assertThat(result).isEqualTo(NotificationSound.ElementDefault)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `readNoisyChannelSound - classifies the bundled fade URI as ElementFade`() = runTest {
+        val context = RuntimeEnvironment.getApplication()
+        val ourFade = "android.resource://${context.packageName}/${io.element.android.libraries.push.impl.R.raw.element_fade}".toUri()
+        val channel = mockk<android.app.NotificationChannel>(relaxed = true) {
+            every { sound } returns ourFade
+        }
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { getNotificationChannel(NOISY_NOTIFICATION_CHANNEL_ID_BASE) } returns channel
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        val result = channels.readNoisyChannelSound()
+
+        assertThat(result).isEqualTo(NotificationSound.ElementFade)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `readNoisyChannelSound - classifies DEFAULT_NOTIFICATION_URI as SystemDefault`() = runTest {
+        val channel = mockk<android.app.NotificationChannel>(relaxed = true) {
+            every { sound } returns Settings.System.DEFAULT_NOTIFICATION_URI
+        }
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { getNotificationChannel(NOISY_NOTIFICATION_CHANNEL_ID_BASE) } returns channel
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        val result = channels.readNoisyChannelSound()
+
+        assertThat(result).isEqualTo(NotificationSound.SystemDefault)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `init - migrates legacy SystemDefault message sound to ElementDefault when version is 0`() = runTest {
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+        }
+        val appPreferencesStore = InMemoryAppPreferencesStore(
+            messageSound = NotificationSound.SystemDefault,
+            messageSoundChannelVersion = 0,
+        )
+
+        createNotificationChannels(
+            notificationManager = notificationManager,
+            appPreferencesStore = appPreferencesStore,
+        )
+
+        val config = appPreferencesStore.getNotificationSoundChannelConfig()
+        assertThat(config.messageSound).isEqualTo(NotificationSound.ElementDefault)
+        assertThat(config.messageSoundVersion).isEqualTo(1)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `init - migration is idempotent across multiple instantiations`() = runTest {
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+        }
+        val appPreferencesStore = InMemoryAppPreferencesStore(
+            messageSound = NotificationSound.SystemDefault,
+            messageSoundChannelVersion = 0,
+        )
+
+        // First boot: migrate.
+        createNotificationChannels(notificationManager = notificationManager, appPreferencesStore = appPreferencesStore)
+        val afterFirst = appPreferencesStore.getNotificationSoundChannelConfig()
+        assertThat(afterFirst.messageSound).isEqualTo(NotificationSound.ElementDefault)
+        assertThat(afterFirst.messageSoundVersion).isEqualTo(1)
+
+        // Second boot: gate (version == 0) no longer matches, so the version must not bump again.
+        createNotificationChannels(notificationManager = notificationManager, appPreferencesStore = appPreferencesStore)
+        val afterSecond = appPreferencesStore.getNotificationSoundChannelConfig()
+        assertThat(afterSecond.messageSound).isEqualTo(NotificationSound.ElementDefault)
+        assertThat(afterSecond.messageSoundVersion).isEqualTo(1)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `init - does not re-migrate when message version is non-zero`() = runTest {
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+        }
+        val appPreferencesStore = InMemoryAppPreferencesStore(
+            messageSound = NotificationSound.SystemDefault,
+            messageSoundChannelVersion = 5,
+        )
+
+        createNotificationChannels(
+            notificationManager = notificationManager,
+            appPreferencesStore = appPreferencesStore,
+        )
+
+        val config = appPreferencesStore.getNotificationSoundChannelConfig()
+        assertThat(config.messageSound).isEqualTo(NotificationSound.SystemDefault)
+        assertThat(config.messageSoundVersion).isEqualTo(5)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `init - does not migrate when persisted message sound is not SystemDefault`() = runTest {
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+        }
+        val appPreferencesStore = InMemoryAppPreferencesStore(
+            messageSound = NotificationSound.Silent,
+            messageSoundChannelVersion = 0,
+        )
+
+        createNotificationChannels(
+            notificationManager = notificationManager,
+            appPreferencesStore = appPreferencesStore,
+        )
+
+        val config = appPreferencesStore.getNotificationSoundChannelConfig()
+        assertThat(config.messageSound).isEqualTo(NotificationSound.Silent)
+        assertThat(config.messageSoundVersion).isEqualTo(0)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `readNoisyChannelSound - returns Silent when channel sound is null`() = runTest {
+        val channel = mockk<android.app.NotificationChannel>(relaxed = true) {
+            every { sound } returns null
+        }
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { getNotificationChannel(NOISY_NOTIFICATION_CHANNEL_ID_BASE) } returns channel
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        val result = channels.readNoisyChannelSound()
+
+        assertThat(result).isEqualTo(NotificationSound.Silent)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `readNoisyChannelSound - returns null when channel does not exist`() = runTest {
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { getNotificationChannel(NOISY_NOTIFICATION_CHANNEL_ID_BASE) } returns null
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        val result = channels.readNoisyChannelSound()
+
+        assertThat(result).isNull()
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `readRingingCallChannelSound - returns SystemDefault when channel sound matches DEFAULT_RINGTONE_URI`() = runTest {
+        val channel = mockk<android.app.NotificationChannel>(relaxed = true) {
+            every { sound } returns Settings.System.DEFAULT_RINGTONE_URI
+        }
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { getNotificationChannel(RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE) } returns channel
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        val result = channels.readRingingCallChannelSound()
+
+        assertThat(result).isEqualTo(NotificationSound.SystemDefault)
+    }
+
+    @Test
+    @Config(sdk = [Build.VERSION_CODES.TIRAMISU])
+    fun `readRingingCallChannelSound - returns Custom for non-default URI`() = runTest {
+        val customUri = "content://media/external/audio/media/9001".toUri()
+        val channel = mockk<android.app.NotificationChannel>(relaxed = true) {
+            every { sound } returns customUri
+        }
+        val notificationManager = mockk<NotificationManagerCompat>(relaxed = true) {
+            every { notificationChannels } returns emptyList()
+            every { getNotificationChannel(RINGING_CALL_NOTIFICATION_CHANNEL_ID_BASE) } returns channel
+        }
+        val channels = createNotificationChannels(notificationManager = notificationManager)
+
+        val result = channels.readRingingCallChannelSound()
+
+        assertThat(result).isEqualTo(NotificationSound.Custom(customUri.toString()))
     }
 
     private fun createNotificationChannels(
         notificationManager: NotificationManagerCompat = mockk(relaxed = true),
         enterpriseService: EnterpriseService = FakeEnterpriseService(),
+        // Default to ElementDefault so the legacy `(SystemDefault, version=0)` migration gate
+        // doesn't fire and silently rewrite the prefs store. Tests that exercise the migration
+        // construct their own store explicitly.
+        appPreferencesStore: AppPreferencesStore = InMemoryAppPreferencesStore(messageSound = NotificationSound.ElementDefault),
     ) = DefaultNotificationChannels(
         notificationManager = notificationManager,
         stringProvider = FakeStringProvider(),
         context = RuntimeEnvironment.getApplication(),
         enterpriseService = enterpriseService,
+        appPreferencesStore = appPreferencesStore,
     )
 }

libraries/push/impl/src/test/kotlin/io/element/android/libraries/push/impl/notifications/factories/DefaultNotificationCreatorTest.kt

@@ -373,10 +373,12 @@ fun createNotificationChannels(
     enterpriseService: EnterpriseService = FakeEnterpriseService(),
 ): NotificationChannels {
     val context = RuntimeEnvironment.getApplication()
+    val notificationManagerCompat = NotificationManagerCompat.from(context)
     return DefaultNotificationChannels(
-        notificationManager = NotificationManagerCompat.from(context),
+        notificationManager = notificationManagerCompat,
         stringProvider = FakeStringProvider(""),
         context = context,
         enterpriseService = enterpriseService,
+        appPreferencesStore = io.element.android.libraries.preferences.test.InMemoryAppPreferencesStore(),
     )
 }

libraries/push/impl/src/test/kotlin/io/element/android/libraries/push/impl/notifications/sound/DefaultNotificationSoundCopierTest.kt

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.impl.notifications.sound
+
+import android.content.Context
+import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.RuntimeEnvironment
+
+@RunWith(RobolectricTestRunner::class)
+class DefaultNotificationSoundCopierTest {
+    private val context: Context get() = RuntimeEnvironment.getApplication()
+
+    @Test
+    fun `sanitizeDisplayName - trims surrounding whitespace`() {
+        assertThat(sanitizeDisplayName("  Hello World  ")).isEqualTo("Hello World")
+    }
+
+    @Test
+    fun `sanitizeDisplayName - DEL and control characters are dropped`() {
+        // Build the raw string programmatically — embedding control chars as source-file bytes
+        // doesn't survive editor / tool round-tripping reliably.
+        val bel = 0x07.toChar()
+        val tab = 0x09.toChar()
+        val newline = 0x0A.toChar()
+        val del = 0x7F.toChar()
+        val raw = "${bel}Hello$tab${newline}World$del"
+        assertThat(sanitizeDisplayName(raw)).isEqualTo("HelloWorld")
+    }
+
+    @Test
+    fun `sanitizeDisplayName - truncates oversized input to 256 chars`() {
+        val long = "x".repeat(500)
+        val sanitized = sanitizeDisplayName(long)
+        assertThat(sanitized).isNotNull()
+        assertThat(sanitized!!.length).isEqualTo(256)
+    }
+
+    @Test
+    fun `sanitizeDisplayName - returns null when nothing survives sanitization`() {
+        assertThat(sanitizeDisplayName("")).isNull()
+        assertThat(sanitizeDisplayName("    ")).isNull()
+        val controls = (0..0x1F).joinToString(separator = "") { it.toChar().toString() } + 0x7F.toChar()
+        assertThat(sanitizeDisplayName(controls)).isNull()
+    }
+
+    @Test
+    fun `sanitizeDisplayName - preserves unicode beyond ASCII`() {
+        val input = "Element Tone " + 0x266A.toChar()
+        assertThat(sanitizeDisplayName(input)).isEqualTo(input)
+    }
+
+    @Test
+    fun `copyToAppFiles - rejects file scheme`() = runTest {
+        val copier = DefaultNotificationSoundCopier(context)
+        val result = copier.copyToAppFiles("file:///tmp/evil.mp3", NotificationSoundCopier.SoundSlot.Message)
+        assertThat(result).isEqualTo(NotificationSoundCopier.CopyResult.UnplayableSource)
+    }
+
+    @Test
+    fun `copyToAppFiles - rejects http scheme`() = runTest {
+        val copier = DefaultNotificationSoundCopier(context)
+        val result = copier.copyToAppFiles("https://attacker.example.com/sound.mp3", NotificationSoundCopier.SoundSlot.Call)
+        assertThat(result).isEqualTo(NotificationSoundCopier.CopyResult.UnplayableSource)
+    }
+
+    @Test
+    fun `copyToAppFiles - rejects URI without a scheme`() = runTest {
+        val copier = DefaultNotificationSoundCopier(context)
+        val result = copier.copyToAppFiles("not-a-real-uri", NotificationSoundCopier.SoundSlot.Message)
+        assertThat(result).isEqualTo(NotificationSoundCopier.CopyResult.UnplayableSource)
+    }
+}

libraries/push/test/build.gradle.kts

@@ -19,6 +19,7 @@ dependencies {
     api(projects.libraries.pushproviders.api)
     implementation(projects.libraries.designsystem)
     implementation(projects.libraries.matrix.api)
+    implementation(projects.libraries.preferences.api)
     implementation(projects.libraries.matrixui)
     implementation(projects.libraries.workmanager.api)
     implementation(projects.tests.testutils)

libraries/push/test/src/main/kotlin/io/element/android/libraries/push/test/notifications/FakeNotificationSoundUpdater.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.test.notifications
+
+import io.element.android.libraries.preferences.api.store.NotificationSound
+import io.element.android.libraries.push.api.notifications.NotificationSoundUpdater
+import io.element.android.tests.testutils.lambda.lambdaError
+
+class FakeNotificationSoundUpdater(
+    private val recreateNoisyChannelLambda: (sound: NotificationSound, version: Int) -> Unit = { _, _ -> lambdaError() },
+    private val recreateRingingCallChannelLambda: (sound: NotificationSound, version: Int) -> Unit = { _, _ -> lambdaError() },
+    private val readNoisyChannelSoundLambda: () -> NotificationSound? = { null },
+    private val readRingingCallChannelSoundLambda: () -> NotificationSound? = { null },
+) : NotificationSoundUpdater {
+    override fun recreateNoisyChannel(sound: NotificationSound, version: Int) {
+        recreateNoisyChannelLambda(sound, version)
+    }
+
+    override fun recreateRingingCallChannel(sound: NotificationSound, version: Int) {
+        recreateRingingCallChannelLambda(sound, version)
+    }
+
+    override suspend fun readNoisyChannelSound(): NotificationSound? = readNoisyChannelSoundLambda()
+
+    override suspend fun readRingingCallChannelSound(): NotificationSound? = readRingingCallChannelSoundLambda()
+}

libraries/push/test/src/main/kotlin/io/element/android/libraries/push/test/notifications/FakeSoundDisplayNameResolver.kt

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.test.notifications
+
+import io.element.android.libraries.push.api.notifications.SoundDisplayNameResolver
+
+class FakeSoundDisplayNameResolver(
+    // Default resolves to a non-null sentinel so a default-constructed fake doesn't masquerade
+    // as "every Custom URI is unresolvable" — that would trip mid-session detection paths in
+    // every test that uses default fakes. Tests that need the unavailable case pass `{ null }`.
+    private val resolveLambda: suspend (uri: String) -> String? = { "FakeRingtoneTitle" },
+) : SoundDisplayNameResolver {
+    override suspend fun resolveCustomSoundTitle(uri: String): String? = resolveLambda(uri)
+}

libraries/push/test/src/main/kotlin/io/element/android/libraries/push/test/notifications/sound/FakeNotificationSoundCopier.kt

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.test.notifications.sound
+
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier.CopyResult
+import io.element.android.libraries.push.api.notifications.sound.NotificationSoundCopier.SoundSlot
+import io.element.android.tests.testutils.lambda.lambdaError
+
+class FakeNotificationSoundCopier(
+    private val copyLambda: (String, SoundSlot) -> CopyResult = { _, _ -> lambdaError() },
+    private val deleteStoredSoundForLambda: (SoundSlot) -> Unit = {},
+) : NotificationSoundCopier {
+    override suspend fun copyToAppFiles(sourceUriString: String, slot: SoundSlot): CopyResult = copyLambda(sourceUriString, slot)
+
+    override suspend fun deleteStoredSoundFor(slot: SoundSlot) {
+        deleteStoredSoundForLambda(slot)
+    }
+}

libraries/ui-strings/src/main/res/values-fi/translations.xml

@@ -480,10 +480,6 @@ Haluatko varmasti jatkaa?"</string>
   <string name="screen_create_poll_options_section_title">"Vaihtoehdot"</string>
   <string name="screen_create_poll_remove_accessibility_label">"Poista %1$s"</string>
   <string name="screen_create_poll_settings_section_title">"Asetukset"</string>
-  <plurals name="screen_image_edition_a11y_rotation_state">
-    <item quantity="one">"%1$d aste"</item>
-    <item quantity="other">"%1$d astetta"</item>
-  </plurals>
   <string name="screen_live_location_sheet_nobody_sharing">"Kukaan ei jaa sijaintiaan"</string>
   <string name="screen_live_location_sheet_sharing_live_location">"Jaetaan reaaliaikaista sijaintia"</string>
   <plurals name="screen_live_location_sheet_subtitle">

libraries/ui-strings/src/main/res/values-fr/translations.xml

@@ -480,10 +480,6 @@ Raison : %1$s."</string>
   <string name="screen_create_poll_options_section_title">"Options"</string>
   <string name="screen_create_poll_remove_accessibility_label">"Supprimer %1$s"</string>
   <string name="screen_create_poll_settings_section_title">"Paramètres"</string>
-  <plurals name="screen_image_edition_a11y_rotation_state">
-    <item quantity="one">"%1$d degré"</item>
-    <item quantity="other">"%1$d degrés"</item>
-  </plurals>
   <string name="screen_live_location_sheet_nobody_sharing">"Personne ne partage sa position"</string>
   <string name="screen_live_location_sheet_sharing_live_location">"Partage de la position en direct"</string>
   <plurals name="screen_live_location_sheet_subtitle">

libraries/ui-strings/src/main/res/values-ja/translations.xml

@@ -471,11 +471,6 @@
   <string name="screen_create_poll_options_section_title">"選択肢"</string>
   <string name="screen_create_poll_remove_accessibility_label">"%1$s を削除"</string>
   <string name="screen_create_poll_settings_section_title">"設定"</string>
-  <string name="screen_image_edition_a11y_rotate_to_the_left">"画像を左に回転"</string>
-  <plurals name="screen_image_edition_a11y_rotation_state">
-    <item quantity="other">"%1$d°"</item>
-  </plurals>
-  <string name="screen_image_edition_title">"写真を編集"</string>
   <string name="screen_live_location_sheet_nobody_sharing">"誰も位置情報を共有していません"</string>
   <string name="screen_live_location_sheet_sharing_live_location">"ライブ位置情報を共有しています"</string>
   <plurals name="screen_live_location_sheet_subtitle">

libraries/ui-strings/src/main/res/values-pl/translations.xml

@@ -489,13 +489,6 @@ Czy na pewno chcesz kontynuować?"</string>
   <string name="screen_create_poll_options_section_title">"Opcje"</string>
   <string name="screen_create_poll_remove_accessibility_label">"Usuń %1$s"</string>
   <string name="screen_create_poll_settings_section_title">"Ustawienia"</string>
-  <string name="screen_image_edition_a11y_rotate_to_the_left">"Obróć obraz w lewo"</string>
-  <plurals name="screen_image_edition_a11y_rotation_state">
-    <item quantity="one">"%1$d stopień"</item>
-    <item quantity="few">"%1$d stopnie"</item>
-    <item quantity="many">"%1$d stopni"</item>
-  </plurals>
-  <string name="screen_image_edition_title">"Edytuj zdjęcie"</string>
   <string name="screen_live_location_sheet_nobody_sharing">"Nikt nie udostępnia swojej lokalizacji"</string>
   <string name="screen_live_location_sheet_sharing_live_location">"Udostępnianie lokalizacji na żywo"</string>
   <plurals name="screen_live_location_sheet_subtitle">

libraries/ui-strings/src/main/res/values-zh/translations.xml

@@ -469,11 +469,6 @@
   <string name="screen_create_poll_options_section_title">"选项"</string>
   <string name="screen_create_poll_remove_accessibility_label">"移除 %1$s"</string>
   <string name="screen_create_poll_settings_section_title">"设置"</string>
-  <string name="screen_image_edition_a11y_rotate_to_the_left">"向左旋转图像"</string>
-  <plurals name="screen_image_edition_a11y_rotation_state">
-    <item quantity="other">"%1$d 度"</item>
-  </plurals>
-  <string name="screen_image_edition_title">"编辑照片"</string>
   <string name="screen_live_location_sheet_nobody_sharing">"目前无人分享其位置"</string>
   <string name="screen_live_location_sheet_sharing_live_location">"共享实时位置"</string>
   <plurals name="screen_live_location_sheet_subtitle">

libraries/ui-strings/src/main/res/values/localazy.xml

@@ -481,12 +481,6 @@ Are you sure you want to continue?"</string>
   <string name="screen_create_poll_options_section_title">"Options"</string>
   <string name="screen_create_poll_remove_accessibility_label">"Remove %1$s"</string>
   <string name="screen_create_poll_settings_section_title">"Settings"</string>
-  <string name="screen_image_edition_a11y_rotate_to_the_left">"Rotate the image to the left"</string>
-  <plurals name="screen_image_edition_a11y_rotation_state">
-    <item quantity="one">"%1$d degree"</item>
-    <item quantity="other">"%1$d degrees"</item>
-  </plurals>
-  <string name="screen_image_edition_title">"Edit photo"</string>
   <string name="screen_live_location_sheet_nobody_sharing">"Nobody is sharing their location"</string>
   <string name="screen_live_location_sheet_sharing_live_location">"Sharing live location"</string>
   <plurals name="screen_live_location_sheet_subtitle">

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_0_en.png

@@ -1,3 +1,3 @@
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-oid sha256:01999b61120bb58f8cfa56a2f5b1b5573d2755fc5be85d3929237d6a61244ab0
+oid sha256:2dd82d156d36a7c7141fd5a4eafdbcbfe9aacc7a8dcede267fdfde272519bee6
-size 54308
+size 52088

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_14_en.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:72acb2485a98126e53c27459d63fe7d3718ebc94215a597207ff820d4c9e45a7
+size 43439

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_15_en.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a8b4f5fe2d2aa5459aac05180882b3aaa9fc9777f84f4c817c9e995049485946
+size 42052

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_16_en.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ba8f5f9d0ce23de5e6d57660887478b04851680d13a9f8f70d1488c557a25afc
+size 43261

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_17_en.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3dc8f7d0497632c723311c530d37807261686ed9fe4d7ff926c0a0fbf825cf23
+size 43179

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_18_en.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2cc1821e0f114837943f9b9ff76f43a1bf871cc49a4eff704e8c87b50cc384ba
+size 44736

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_19_en.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cbf8bd63967dc3e0739ea2cc62c42fbcbe7d0a9cdf50b41f24c1ccab1f300eab
+size 39442

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_1_en.png

@@ -1,3 +1,3 @@
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-oid sha256:52f7675544ba71ed73d2f4283287f46eaa0798d48993d7eb54fc28f87c89cf0e
+oid sha256:3dc8f7d0497632c723311c530d37807261686ed9fe4d7ff926c0a0fbf825cf23
-size 43466
+size 43179

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_20_en.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d0c31e3d7a0788e91287da4ed4f0b6e5e1ade8ce542392f4ba6029d524372c32
+size 41551

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_2_en.png

@@ -1,3 +1,3 @@
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-oid sha256:50cca191bf1c21a4d0f2765643712d0db6813dc23f2c4b70589ad65f2847b259
+oid sha256:176519a45ab97560dc2f8bf1416915759039616458f5fde22def7022595b4cc9
-size 40215
+size 39890

tests/uitests/src/test/snapshots/images/features.preferences.impl.notifications_NotificationSettingsView_Day_3_en.png

@@ -1,3 +1,3 @@
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