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.