Speech / Music Streaming

In addition to configuring bitrates (Features > Quality Settings), it is possible to explicitly disable or enable the following audio filters:

• autoGainControl - Attempts to automatically maintain a steady overall volume level.
• echoCancellation - Attempts to prevent echo effects.
• noiseSuppression - Automatically filters the audio to remove background noise.

Depending on the use case, it can be beneficial to enable or disable all of these filters at once.
In general, there are two primary types of audio content:

• Speech: Typically includes spoken content
• Music: Comprises musical audio content

Recommendation

For optimal results, we recommend setting all of the above filters to true for speech/voice streams and all of them to false for music streaming. In most systems, these filters are enabled by default.

Speech audio

For speech audio streaming, enable the recommended filters

const webcaster = new window.WebcasterApiV6.Webcaster({
  inputCfg: {
    mediaStreamCfg: {
      audioConstraints: {
        autoGainControl: true,
        echoCancellation: true,
        noiseSuppression: true,
      }
    },
  },
  streamName: '<STREAM-NAME-1>'
});

await webcaster.setup()
await webcaster.startBroadcast()

Music audio

For music audio streaming, disable the filters:

const webcaster = new window.WebcasterApiV6.Webcaster({
  inputCfg: {
    mediaStreamCfg: {
      audioConstraints: {
        autoGainControl: false,
        echoCancellation: false,
        noiseSuppression: false,
      }
    },
  },
  streamName: '<STREAM-NAME-1>'
});

await webcaster.setup()
await webcaster.startBroadcast()