To achieve the best audio quality from a RoomCompositeEgress, you can follow these recommendations: • Audio-Only Composite: For audio-focused applications, create an audio-only composite that mixes audio from all participants. Example:

const info = await egressClient.startRoomCompositeEgress('my-room', output, { audioOnly: true });

• High-Quality Audio Settings: When publishing audio tracks, use the following settings:

const audioTrack = await createLocalAudioTrack({
  channelCount: 2,
  echoCancellation: false,
  noiseSuppression: false,
});

const audioPublication = await localParticipant.publishTrack(audioTrack, {
  audioPreset: AudioPresets.musicHighQualityStereo,
  dtx: false,
  red: false,
});

• Maximum Quality Settings: LiveKit supports audio tracks up to 510kbps stereo for the highest theoretical quality:

const audioTrack = await createLocalAudioTrack({
  channelCount: 2,
  echoCancellation: false,
  noiseSuppression: false,
});

const audioPublication = await localParticipant.publishTrack(audioTrack, {
  audioBitrate: 510000,
  dtx: false,
  red: false,
});

These settings ensure optimal audio quality for your RoomCompositeEgress. Let me know if you need further assistance! Sources: Codecs and more | LiveKit Docs | RoomComposite Egress | LiveKit Docs | Hi-fi audio | LiveKit Docs