How to select audio tracks in different languages (Windows Store apps using JavaScript and HTML)

You can use the audioTracks property to switch between multiple audio tracks on a media file. For example, media files could contain multiple audio tracks in different languages. The audioTracks attribute is available on the Video and Audio elements.

You can search the list of audio tracks by iterating through the audioTracks property. When you find the desired track, select it by setting the enabled property to true. If the enabled track is changed, be sure to set the enabled property on the previous track to false.

The language of the track is represented by using a language code.

This example iterates through the audio tracks on a Video object and compares the language property to "en-gb". When the desired track is found, the enabled property is set to true.

function selectLang() {
    var myVideo = document.getElementById("videoTag1");
    
    if (myVideo.audioTracks.length > 1) {
        for (var i = 0; i < myVideo.audioTracks.length ; i++) {
            if (myVideo.audioTracks[i].language == "en-gb") {
                myVideo.audioTracks[i].enabled = true;
            }
            else {
                myVideo.audioTracks[i].enabled = false;
            }
        }
    }

    myVideo.play();
}

Related topics

Video

Audio

Media Playback Sample

Build date: 11/29/2012