Fix mic processing toggles after LiveKit voiceIsolation default

src/app/features/call/CallService.ts

@@ -9,6 +9,7 @@ import {
   ParticipantEvent,
   Participant,
   LocalTrackPublication,
+  LocalAudioTrack,
   Track,
 } from 'livekit-client';
 import { MatrixClient } from 'matrix-js-sdk';
@@ -31,7 +32,7 @@ import {
   getLiveKitHomeserverPriority,
 } from './useRtcConfig';
 import { getActiveCallMembers } from './useRoomCallMembers';
-import { getAudioSettings, SCREEN_SHARE_RESOLUTIONS, SCREEN_SHARE_BITRATES } from '../settings/audio/Audio';
+import { getAudioCaptureOptions, getAudioSettings, AUDIO_SETTINGS_CHANGED_EVENT, SCREEN_SHARE_RESOLUTIONS, SCREEN_SHARE_BITRATES } from '../settings/audio/Audio';
 import { getCallSounds, CallSoundType } from './CallSounds';
 
 type CallEventListener = (event: CallEvent) => void;
@@ -102,6 +103,10 @@ export class CallService {
 
   private wasMutedBeforeDeafen = false;
 
+  private readonly onAudioSettingsChanged = () => {
+    void this.applyAudioCaptureSettings();
+  };
+
   /**
    * Creates a new CallService instance
    * @param config - Service configuration including homeserver and LiveKit URLs
@@ -110,6 +115,7 @@ export class CallService {
   constructor(config: CallServiceConfig, matrixClient: MatrixClient) {
     this.config = config;
     this.matrixClient = matrixClient;
+    window.addEventListener(AUDIO_SETTINGS_CHANGED_EVENT, this.onAudioSettingsChanged);
   }
 
   /**
@@ -386,9 +392,13 @@ export class CallService {
       }
 
       // Step 4: Create and connect to LiveKit room
+      // Pin audioCaptureDefaults so mute/unmute republish doesn't re-enable LiveKit's
+      // voiceIsolation:true default (which ignores noiseSuppression).
+      const audioCaptureOptions = getAudioCaptureOptions();
       this.livekitRoom = new Room({
         adaptiveStream: true,
         dynacast: true,
+        audioCaptureDefaults: audioCaptureOptions,
       });
 
       this.setupLiveKitEventHandlers();
@@ -400,19 +410,7 @@ export class CallService {
       console.log('Local participant identity:', this.livekitRoom.localParticipant.identity);
       console.log('Remote participants:', this.livekitRoom.remoteParticipants.size);
 
-      // Get user's audio device preferences
-      const audioSettings = getAudioSettings();
-      console.log('Using audio settings:', audioSettings);
-
-      // Build audio capture options with processing settings
-      const audioCaptureOptions = {
-        deviceId: audioSettings.microphoneId || undefined,
-        noiseSuppression: audioSettings.noiseSuppression,
-        echoCancellation: audioSettings.echoCancellation,
-        autoGainControl: audioSettings.autoGainControl,
-      };
-
-      console.log('Audio capture options:', audioCaptureOptions);
+      console.log('Using audio capture options:', audioCaptureOptions);
 
       // Step 5: Publish local tracks based on call type with selected devices and processing
       if (callType === CallType.Video) {
@@ -881,7 +879,10 @@ export class CallService {
       getCallSounds().playSound(CallSoundType.Undeafen);
     }
     
-    this.livekitRoom.localParticipant.setMicrophoneEnabled(!newMuteState);
+    this.livekitRoom.localParticipant.setMicrophoneEnabled(
+      !newMuteState,
+      getAudioCaptureOptions()
+    );
     this.activeCall.isMuted = newMuteState;
 
     // Play mute/unmute sound
@@ -929,7 +930,7 @@ export class CallService {
     } else {
       // Undeafening - only unmute if user wasn't muted before deafening
       if (!this.wasMutedBeforeDeafen && this.activeCall.isMuted) {
-        this.livekitRoom.localParticipant.setMicrophoneEnabled(true);
+        this.livekitRoom.localParticipant.setMicrophoneEnabled(true, getAudioCaptureOptions());
         this.activeCall.isMuted = false;
       }
       this.wasMutedBeforeDeafen = false;
@@ -1129,10 +1130,39 @@ export class CallService {
     return this.activeCall?.isScreenSharing ?? false;
   }
 
+  /**
+   * Re-apply stored mic processing settings to the live published track.
+   * Needed because LiveKit merges voiceIsolation:true by default, and because
+   * settings changes mid-call previously only wrote localStorage.
+   */
+  async applyAudioCaptureSettings(): Promise<void> {
+    if (!this.livekitRoom || !this.activeCall) return;
+
+    const options = getAudioCaptureOptions();
+    this.livekitRoom.options.audioCaptureDefaults = {
+      ...this.livekitRoom.options.audioCaptureDefaults,
+      ...options,
+    };
+
+    const publication = this.livekitRoom.localParticipant.getTrackPublication(
+      Track.Source.Microphone
+    );
+    const track = publication?.track;
+    if (!(track instanceof LocalAudioTrack)) return;
+
+    try {
+      await track.restartTrack(options);
+      console.log('Reapplied audio capture settings:', options);
+    } catch (error) {
+      console.error('Failed to reapply audio capture settings:', error);
+    }
+  }
+
   /**
    * Cleans up resources
    */
   dispose(): void {
+    window.removeEventListener(AUDIO_SETTINGS_CHANGED_EVENT, this.onAudioSettingsChanged);
     this.stopMembershipRefresh();
     this.endCall();
     this.listeners.clear();