Web/API/MediaStreamTrackAudioSourceOptions/mediaStreamTrack

The MediaStreamTrackAudioSourceOptions dictionary's mediaStreamTrack property must contain a reference to the MediaStreamTrack from which the MediaStreamTrackAudioSourceNode being created using the MediaStreamTrackAudioSourceNode() constructor.

Syntax

mediaStreamTrackAudioSourceOptions = {
  mediaStreamTrack: audioSourceTrack;
}

mediaStreamTrackAudioSourceOptions.mediaStreamTrack = audioSourceTrack;

Value

A MediaStreamTrack from which the audio output of the new MediaStreamTrackAudioSourceNode will be taken.

Example

This example uses getUserMedia() to obtain access to the user's camera, then creates a new MediaStreamAudioSourceNode from the first audio track provided by the device.

let audioCtx = new (window.AudioContext || window.webkitAudioContext)();

if (navigator.mediaDevices.getUserMedia) {
  navigator.mediaDevices.getUserMedia (
    {
      audio: true,
      video: false
    }).then(function(stream) {
      let options = {
        mediaStreamTrack: stream.getAudioTracks()[0];
      }

      let source = new MediaStreamTrackAudioSourceNode(audioCtx, options);
      source.connect(audioCtx.destination);
    }).catch(function(err) {
      console.log('The following gUM error occured: ' + err);
    });
} else {
  console.log('new getUserMedia not supported on your browser!');
}

Specifications

Specification	Status	Comment
Web Audio APIThe definition of 'MediaStreamTrackAudioSourceOptions.mediaStream' in that specification.	Working Draft

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
mediaStreamTrack	Chrome No support No	Edge No support No	Firefox Full support 68	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android Full support 68	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No

Legend

Full support  

Full support

No support  

No support

MediaStreamTrackAudioSourceOptions.mediaStreamTrack by Mozilla Contributors is licensed under CC-BY-SA 2.5.