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Showing content from https://webplatform.github.io/docs/apis/audio-video/AudioTrack/enabled below:

enabled · WebPlatform Docs

enabled Summary

Returns true if the given track is active, and false otherwise. Can be set, to change whether the track is enabled or not. If multiple audio tracks are enabled simultaneously, they are mixed.

Property of apis/audio-video/AudioTrack apis/audio-video/AudioTrack

Syntax

var result = AudioTrack.enabled;
AudioTrack.enabled = value;

Return Value

Returns an object of type BooleanBoolean

Examples

(function () {
    
    var video = document.getElementById("video");

    video.addEventListener("loadeddata", function () {

        
        var audioTracks = video.audioTracks;

        var tracksSelection = document.getElementById("tracksSelection");

        
        for (var i = 0; i < audioTracks.length; i++) {

            
            
            var opt = document.createElement('option');
            opt.value = audioTracks[i].id;
            opt.text = audioTracks[i].language;

            tracksSelection.add(opt);
        }
    });

    tracksSelection.addEventListener("change", function (e) {
        
        
        var audioTracks = video.audioTracks;
        var track = audioTracks.getTrackById(e.currentTarget.value);

        
        for (var i = 0; i < audioTracks.length; i++) {
            audioTracks.enabled = false;
        }

        
        track.enabled = true;
    });
})();

View live example

Related specifications

W3C HTML5 Specification: W3C Editor’s Draft