How to add an audiotrack in video.js?

in the examples of video.js I've found this:

var track = new videojs.AudioTrack({
  id: 'my-spanish-audio-track',
  kind: 'translation',
  label: 'Spanish',
  language: 'es'
});

my question is how it is added if there are no src attribute, from where does it get the track itself? I mean the source itself like mp3 or wav file

from the docs: http://docs.videojs.com/docs/guides/audio-tracks.html

Solution

Audio src under the <audio controls> then <source> tag. You should define here or create dynamically this elements.

You can download example sounds here.

var player = videojs('my-player');

// Create a track object.
var track = new videojs.AudioTrack({
  id: 'my-spanish-audio-track',
  kind: 'translation',
  label: 'Spanish',
  language: 'es'
});

// Add the track to the player's audio track list.
player.audioTracks().addTrack(track);

<script src="https://vjs.zencdn.net/5.15/video.js"></script>
<link href="https://vjs.zencdn.net/5.15/video-js.css" rel="stylesheet" />


<audio id="my-player" class="video-js" controls>
  <source id="my-spanish-audio-track" src="https://www.w3schools.com/html/horse.ogg" type="audio/ogg">
</audio>

Dynamically;

var myAudio=document.createElement("audio");
myAudio.id="my-player";
myAudio.className="video-js";
myAudio.setAttribute("controls",true);
var mySource1=document.createElement("source");
mySource1.id="my-spanish-audio-track";
mySource1.src="https://www.w3schools.com/html/horse.ogg";
mySource1.type="audio/ogg";

myAudio.appendChild(mySource1);
document.body.appendChild(myAudio);

var player = videojs('my-player');

// Create a track object.
var track = new videojs.AudioTrack({
  id: 'my-spanish-audio-track',
  kind: 'translation',
  label: 'Spanish',
  language: 'es'
});

// Add the track to the player's audio track list.
player.audioTracks().addTrack(track);

<script src="https://vjs.zencdn.net/5.15/video.js"></script>
<link href="https://vjs.zencdn.net/5.15/video-js.css" rel="stylesheet"/>

<body>

</body>