Change Audio Output Device - Javascript

During the meeting, at any point, a participant wishing to switch their output audio device, such as from headphones to speakers, can do so using the below-mentioned methods.

Getting Output device

• To get all the available audio output devices, you can use the navigator.mediaDevices, and then filter it based on the device kind as audiooutput.

const getAudioOutputDevice = () => {
  const audioOutputDevice = new Map();
  const devices = await navigator.mediaDevices.enumerateDevices();
  for (const device of devices) {
    if (device.kind == "audiooutput") audioOutputDevice.set(device.deviceId, device);
  }
  return audioOutputDevice;
}

Changing Output Device

• To change the output audio device, you need to set the sinkId for each <audio> element used to render the audio in the meeting.

const setAudioOutputDevice = (deviceId) => {
  const audioTags = document.getElementsByTagName("audio");
  audioTags.forEach((tag) => {
    tag.setSinkId(deviceId);
  });
};

note

To learn more about changing the audio output device check this documentation.

Setting Audio Volume

• To set the audio volume for the meeting, you need to adjust the volume property for each <audio> element used to render the paricipant audio.

• Value for the volume property for the <audio> can be between 0 and 1.

const setAudioVolume = (volume) => {
  const audioTags = document.getElementsByTagName("audio");
  audioTags.forEach((tag) => {
    tag.volume = volume;
  });
};

note

To learn more about adjusting the audio volume check this documentation.