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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 Event handlers in AudioTrackList to learn more about watching for changes to a media element's track list.
Syntax
var audioTracks = mediaElement.audioTracks;
Value
A 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 a 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.
<video id="video" src="somevideo.mp4"></video>
JavaScript
The JavaScript code handles muting the video element's audio tracks.
var video = document.getElementById("video");
for (var i = 0; i < video.audioTracks.length; i += 1) {
video.audioTracks[i].enabled = false;
}
Specifications
Specification | Status | Comment |
HTML Living StandardThe definition of 'HTMLMediaElement.audioTracks' in that specification. | Living Standard | No change from HTML5 |
HTML5The definition of 'HTMLMediaElement.audioTracks' in that specification. | Recommendation | Initial definition. |
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
audioTracks
|
Chrome Full support 37 Full support 37 Disabled' From version 37: this feature is behind the |
Edge Full support 79 Full support 79 Disabled' From version 79: this feature is behind the |
Firefox Full support 33 Full support 33 Disabled' From version 33: this feature is behind the |
IE
? |
Opera Full support 24 Full support 24 Disabled' From version 24: this feature is behind the |
Safari
Full support 8 |
WebView Android
No support No |
Chrome Android Full support 37 Full support 37 Disabled' From version 37: this feature is behind the |
Firefox Android Full support 33 Full support 33 Disabled' From version 33: this feature is behind the |
Opera Android Full support 24 Full support 24 Disabled' From version 24: this feature is behind the |
Safari iOS
Full support 8 |
Samsung Internet Android
No support No |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- User must explicitly enable this feature.'
- User must explicitly enable this feature.
See also
- The interface defining it,
HTMLMediaElement
. <audio>
and<video>
AudioTrack
andAudioTrackList
HTMLMediaElement.audioTracks by Mozilla Contributors is licensed under CC-BY-SA 2.5.