The AudioTrack property enabled specifies whether or not the described audio track is currently enabled for use. If the track is disabled by setting enabled to false, the track is muted and does not produce audio.


isAudioEnabled = AudioTrack.enabled;

AudioTrack.enabled = true | false;


The enabled property is a Boolean whose value is true if the track is enabled; enabled tracks produce audio while the media is playing. Setting enabled to false effectively mutes the audio track, preventing it from contributing to the media's audio performance.


This example switches between the main and commentary audio tracks of a media element.

function swapCommentaryMain() {
  var videoElem = document.getElementById("main-video");
  var audioTrackMain;
  var audioTrackCommentary;

  videoElem.audioTracks.forEach(track) {
    if (track.kind === "main") {
      audioTrackMain = track;
    } else if (track.kind === "commentary") {
      audioTrackCommentary = track;

  if (audioTrackMain && audioTrackCommentary) {
    var commentaryEnabled = audioTrackCommentary.enabled;
    audioTrackCommentary.enabled = audioTrackMain.enabled;
    audioTrackMain.enabled = commentaryEnabled;

The swapCommentaryMain() function above finds within the audio tracks of the <video> element "main-video" the audio tracks whose kind values are "main" and "commentary". These represent the primary audio track and the commentary track.

Note: This example assumes that there is only one of each kind of track in the video, but this is not necessarily the case.

The element's audio tracks are then scanned through using the JavaScript forEach() method (although the audioTracks property of a media element isn't actually a JavaScript array, it can be accessed like one for the most part).

The scan looks for the tracks whose kind values are "main" and "commentary" and remembers those AudioTrack objects. Once those have been found, the values of the two tracks' enabled properties are exchanged, which results in swapping which of the two tracks is currently active.


Specification Status Comment
HTML Living Standard
The definition of 'AudioTrack.enabled' in that specification.
Living Standard  
The definition of 'AudioTrack.enabled' in that specification.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
enabledChrome ? Edge Full support 12Firefox ? IE ? Opera ? Safari Full support YesWebView Android ? Chrome Android ? Firefox Android ? Opera Android ? Safari iOS Full support YesSamsung Internet Android ?


Full support  
Full support
Compatibility unknown  
Compatibility unknown