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HTML | DOM Audio audioTracks Property
  • Last Updated : 05 Aug, 2019

The Audio audioTracks Property is used for returning an AudioTrackList object. The audio tracks available for a video are represented by the AudioTrackList object.
The AudioTrack Object is used to represent an available audio track.

Syntax:

audioObject.audioTracks

Return Values:

  1. AudioTrackList Object: It is used to represent the available audio tracks for the audio.
  2. AudioTrack Object: It is used to represent an audio track.

Below program illustrates the Audio audioTracks property :
Example: Getting the number of available audio tracks.




<!DOCTYPE html>
<html>
  
<head>
    <title>
       Audio audioTrack Property
    </title>
</head>
  
<body style="text-align: center">
  
    <h1 style="color: green">
      GeeksforGeeks
    </h1>
    <h2 style="font-family: Impact">
      Audio audioTrack Property
    </h2>
    <br>
  
    <audio id="Test_Audio" controls>
        <source src="sample1.ogg" 
                type="audio/ogg">
        
        <source src="sample1.mp3" 
                type="audio/mpeg">
    </audio>
  
    <p>To get the number of available 
      audio tracks, double click the "Return 
      Count" button.</p>
    <br>
  
    <button ondblclick="My_Audio()">
      Return Count
    </button>
  
    <p id="test"></p>
  
    <script>
        function My_Audio() {
            var a = document.getElementById(
              "Test_Audio").audioTracks.length;
            
            document.getElementById("test").innerHTML = a;
        }
    </script>
  
</body>
  
</html>


Output:

  • Before clicking the button:
  • After clicking the button:

Supported browser: The bowser supported by HTML | DOM Audio audioTracks Property are listed below:

  • Goolge Chrome
  • Internet Explorer
  • Firefox
  • Opera
  • Safari

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