Web/API/AudioTrack/label

The read-only AudioTrack property label returns a string specifying the audio track's human-readable label, if one is available; otherwise, it returns an empty string.

Syntax

var audioTrackLabel = AudioTrack.label;

Value

A DOMString specifying the track's human-readable label, if one is available in the track metadata. Otherwise, an empty string ("") is returned.

For example, a track whose kind is "commentary" might have a label such as "Commentary with director Mark Markmarkimark and star Donna Donnalidon".

Example

This example returns an array of track kinds and labels for potential use in a user interface to select audio tracks for a specified media element. The list is filtered to only allow certain track kinds through.

function getTrackList(el) {
  var trackList = [];
  const wantedKinds = [
    "main", "alternative", "main-desc", "translation", "commentary"
  ];

  el.audioTracks.forEach(function(track) {
    if (wantedKinds.includes(track.kind)) {
      trackList.push({
        id: track.id,
        kind: track.kind,
        label: track.label
      });
    }
  });
  return trackList;
}

The resulting trackList contains an array of audio tracks whose kind is one of those in the array wantedKinds, with each entry providing the track's id, kind, and label.

Specifications

Specification	Status	Comment
HTML Living StandardThe definition of 'AudioTrack.label' in that specification.	Living Standard
HTML5The definition of 'AudioTrack.label' in that specification.	Recommendation

Browser compatibility

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
`label`	Chrome Full support 37 Disabled' Full support 37 Disabled' Disabled' From version 37: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`). To change preferences in Chrome, visit chrome://flags.	Edge Full support 79 Disabled' Full support 79 Disabled' Disabled' From version 79: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`). No support 12 — 79	Firefox Full support 33 Disabled' Full support 33 Disabled' Disabled' From version 33: this feature is behind the `media.track.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	IE Full support 10	Opera Full support 24 Disabled' Full support 24 Disabled' Disabled' From version 24: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`).	Safari Full support 6.1	WebView Android No support No	Chrome Android Full support 37 Disabled' Full support 37 Disabled' Disabled' From version 37: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`). To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support 33 Disabled' Full support 33 Disabled' Disabled' From version 33: this feature is behind the `media.track.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	Opera Android Full support 24 Disabled' Full support 24 Disabled' Disabled' From version 24: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`).	Safari iOS Full support 7	Samsung Internet Android No support No

Legend

Full support: Full support
No support: No support
User must explicitly enable this feature.': User must explicitly enable this feature.

AudioTrack.label by Mozilla Contributors is licensed under CC-BY-SA 2.5.