Additional audio presets, increase default audio bitrate to 32kbps (#464)

* Additional audio presets, increase default audio bitrate to 32kbps.

* changeset

Author: davidzhao

.changeset/lucky-tools-move.md

@@ -0,0 +1,5 @@
+---
+'livekit-client': patch
+---
+
+Increase default audio bitrate; additional audio presets

src/room/defaults.ts

@@ -10,7 +10,7 @@ import {
 } from './track/options';
 
 export const publishDefaults: TrackPublishDefaults = {
-  audioBitrate: AudioPresets.speech.maxBitrate,
+  audioBitrate: AudioPresets.music.maxBitrate,
   dtx: true,
   simulcast: true,
   screenShareEncoding: ScreenSharePresets.h1080fps15.encoding,

src/room/participant/LocalParticipant.ts

@@ -442,7 +442,7 @@ export default class LocalParticipant extends Participant {
     const existingTrackOfSource = Array.from(this.tracks.values()).find(
       (publishedTrack) => track instanceof LocalTrack && publishedTrack.source === track.source,
     );
-    if (existingTrackOfSource) {
+    if (existingTrackOfSource && track.source !== Track.Source.Unknown) {
       try {
         // throw an Error in order to capture the stack trace
         throw Error(`publishing a second track with the same source: ${track.source}`);

src/room/participant/RemoteParticipant.ts

@@ -232,7 +232,7 @@ export default class RemoteParticipant extends Participant {
         const existingTrackOfSource = Array.from(this.tracks.values()).find(
           (publishedTrack) => publishedTrack.source === publication?.source,
         );
-        if (existingTrackOfSource) {
+        if (existingTrackOfSource && publication.source !== Track.Source.Unknown) {
           log.warn(
             `received a second track publication for ${this.identity} with the same source: ${publication.source}`,
             {

src/room/track/options.ts

@@ -236,6 +236,15 @@ export namespace AudioPresets {
   export const music: AudioPreset = {
     maxBitrate: 32_000,
   };
+  export const musicStereo: AudioPreset = {
+    maxBitrate: 48_000,
+  };
+  export const musicHighQuality: AudioPreset = {
+    maxBitrate: 64_000,
+  };
+  export const musicHighQualityStereo: AudioPreset = {
+    maxBitrate: 96_000,
+  };
 }
 
 /**