void JoinChannel()
{
_audioRawDataManager = AudioRawDataManager.GetInstance(mRtcEngine);
_audioRawDataManager.RegisterAudioRawDataObserver();
mRtcEngine.SetParameter("che.audio.external_render", true);
mRtcEngine.JoinChannelByKey(TOKEN, CHANNEL_NAME, "", 0);
}
void SetupAudio(AudioSource aud, string clipName)
{
_audioRawDataManager = AudioRawDataManager.GetInstance(mRtcEngine);
Debug.Assert(_audioRawDataManager.RegisterAudioRawDataObserver() == 0, "Error registering audio rawdata observer!");
mRtcEngine.SetParameter("che.audio.external_render", true);
var bufferLength = SAMPLE_RATE / PULL_FREQ_PER_SEC * CHANNEL * 1000; // 10-sec-length buffer
audioBuffer = new RingBuffer <float>(bufferLength);
_audioClip = AudioClip.Create(clipName,
CLIP_SAMPLES,
CHANNEL, SAMPLE_RATE, true,
OnAudioRead);
aud.clip = _audioClip;
aud.loop = true;
aud.Play();
}