Audio Streaming

In order to stream audio, first you need to get the stream instance. Call Audio.CaptureStream().

audioStream = Audio.CaptureStream();

Add the audio track to the peer. RTCRtpSender will be used when discarding media.

    var senders = new List<RTCRtpSender>();
    foreach (var track in audioStream.GetTracks())
    {
        var sender = localConnection.AddTrack(track);
        senders.Add(sender);
    }

Use the RemoveTrack method to discard the media.

    foreach(var sender in senders)
    {
        localConnection.RemoveTrack(sender);
    }

Call the Audio's Update method inside the MonoBehaviour's OnAudioFilterRead method.

    private void OnAudioFilterRead(float[] data, int channels)
    {
        Audio.Update(data, data.Length);
    }

Note

As with the AudioListener component, when using the OnAudioFilterRead method, it must be associated with a GameObject.

Alternatively, AudioRenderer can also be used.

    private void Start()
    {
        AudioRenderer.Start();
    }

    private void Update()
    {
        var sampleCountFrame = AudioRenderer.GetSampleCountForCaptureFrame();
        var channelCount = 2; // AudioSettings.speakerMode == Stereo
        var length = sampleCountFrame * channelCount;
        var buffer = new NativeArray<float>(length, Allocator.Temp);
        AudioRenderer.Render(buffer);
        Audio.Update(buffer.ToArray(), buffer.Length);
        buffer.Dispose();
    }