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HTML | DOM Video audioTracks Property
  • Difficulty Level : Basic
  • Last Updated : 05 Aug, 2019

The Video 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

videoObject.audioTracks

Below program illustrates the Video audioTracks Property :
Example: Getting the number of available audio tracks.




<!DOCTYPE html>
<html>
  
<head>
    <title>
      Video audioTracks Property in HTML
    </title>
    <style>
        h1 {
            color: green;
        }
          
        h2 {
            font-family: Impact;
        }
          
        body {
            text-align: center;
        }
    </style>
</head>
  
<body>
  
    <h1>
      GeeksforGeeks
    </h1>
    <h2>
      Video audioTracks Property
    </h2>
    <br>
  
    <video id="Test_Video" 
           width="360"
           height="240" 
           controls>
        
        <source src="samplevideo.mp4" 
                type="video/mp4">
        
        <source src="movie.ogg" 
                type="video/ogg">
    </video>
  
    <p>
      To get the number of available audio tracks, 
      double click the "Return Count" button.
    </p>
  
    <button ondblclick="My_Video()">
      Return Count
    </button>
  
    <p id="test"></p>
  
    <script>
        function My_Video() {
            var v = 
                document.getElementById(
                  "Test_Video").audioTracks.length;
            
            document.getElementById(
              "test").innerHTML = v;
        }
    </script>
  
</body>
  
</html>

Output:

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

Supported browsers: Major browsers are not supported by HTML | DOM Video audioTracks Property .

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