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                <video-js id="myPlayerID"
  width="640px" height="360px"></video-js>

<script src="//"></script>



                /* * The body style is just for the
 * background color of the codepen.
 * Do not include in your code.
body {
  background-color: #111;
  color: #fff;
 * Styles essential to the sample
 * are below


                videojs.getPlayer("myPlayerID").ready(function() {
  var myPlayer = this;
  myPlayer.on("loadedmetadata", function() {
    var browser_language, track_language, audioTracks;
    // +++ Get the browser language +++
    browser_language = navigator.language || navigator.userLanguage; // IE <= 10
    browser_language = browser_language.substr(0, 2);

    // +++ Get the audio tracks +++
    audioTracks = myPlayer.audioTracks();

    // +++ Loop through audio tracks +++
    for (var i = 0; i < audioTracks.length; i++) {
      track_language = audioTracks[i].language.substr(0, 2);

      // +++ Set the enabled audio track language +++
      if (track_language) {
        // When the track language matches the browser language, then enable that audio track
        if (track_language === browser_language) {
          // When one audio track is enabled, others are automatically disabled
          audioTracks[i].enabled = true;