HTML | DOM Audio seekable Property

The DOM Audio seekable property is used for returning a TimeRanges object. The TimeRanges object is used for representing the ranges of the audio which are available for seeking by the user.
The time-range of audio which is available for seeking i.e. moving playback position is called a seekable range.
It is often possible to seek anywhere in the audio even before it has been buffered if its a non-streaming audio.
The Audio seekable property is a read-only property.

The time ranges object properties are:

  • length: It is used to get the number of seekable ranges in the audio.
  • start(index): It is used to get the position of a seekable range.
  • end(index): It is used to get the end position of a seekable range.



Below program illustrates the Audio seekable Property:
Example: Getting the first seekable range of the audio in seconds.





<!DOCTYPE html>
        Audio seekable Property
<body style="text-align:center">
    <h1 style="color:green">
    <h2 style="font-family: Impact">
      Audio seekable Property
    <audio id="Test_Audio" controls>
        <source src="sample1.ogg" 
        <source src="sample1.mp3"
    <p>To get the first seekable range of the audio,
      double click the "Return Seekable Range" button.
    <button ondblclick="MyAudio()" 
      Return Seekable Range 
    <p id="test"></p>
        function MyAudio() {
            var a = document.getElementById("Test_Audio");
            document.getElementById("test").innerHTML = 
              "Start time: " + a.seekable.start(0) + 
              " End time: " + a.seekable.end(0);



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

Supported Browsers: The browsers supported by DOM Audio seekable Property are listed below:

  • Google Chrome
  • Internet Explorer
  • Firefox
  • Opera
  • Apple Safari


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