HTMLMediaElement: audioTracks property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The read-only audioTracks property on HTMLMediaElement objects returns an AudioTrackList object listing all of the AudioTrack objects representing the media element's audio tracks.

The media element may be either an <audio> element or a <video> element.

The returned list is live; that is, as tracks are added to and removed from the media element, the list's contents change dynamically. Once you have a reference to the list, you can monitor it for changes to detect when new audio tracks are added or existing ones removed. See AudioTrackList events to learn more about watching for changes to a media element's track list.

Value

An AudioTrackList object representing the list of audio tracks included in the media element. The list of tracks can be accessed using array notation, or using the object's getTrackById() method.

Each track is represented by an AudioTrack object which provides information about the track.

Examples

In this example, all of the audio tracks on a given element are muted.

HTML

The HTML establishes the element itself.

html
<video id="video" src="somevideo.mp4"></video>

JavaScript

The JavaScript code handles muting the video element's audio tracks.

js
const video = document.getElementById("video");

for (let i = 0; i < video.audioTracks.length; i += 1) {
  video.audioTracks[i].enabled = false;
}

Specifications

Specification
HTML
# dom-media-audiotracks-dev

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
audioTracks

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
User must explicitly enable this feature.
Has more compatibility info.

See also