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HTML | DOM Audio preload Property

  • Last Updated : 21 Jun, 2021

The Audio preload property is used for setting or returning the value of the preload attribute of audio. The preload attribute is used to specify the way the author thinks the audio should be loaded when the page loads. 
The audio preload attribute allows the author to portray to the browser about the way the user experience of a website should be implemented.

  • Return the preload property: 
  • Set the preload property: 
audioObject.preload = "auto | metadata | none"

Property Values: 

  1. auto :It is used to specify that the browser should load the entire video when the page loads.
  2. metadata :It is used to specify that the browser should load only metadata when the page loads.
  3. none :It is used to specify that the browser should NOT load the video when the page loads.

Return Values: It returns a string value which specify that what type of data should be preload in an audio file. 

Below program illustrates the Audio preload Property: 
Example: Finding out the way the publisher wants the audio to be loaded when the page loads. 


<!DOCTYPE html>
        Audio preload Property
<body style="text-align: center">
    <h1 style="color: green">
    <h2 style="font-family: Impact">
      Audio preload Property
    <audio id="Test_Audio" controls>
        <source src="sample1.ogg" type="audio/ogg">
        <source src="sample1.mp3" type="audio/mpeg">
<p>To return the value of the preload
      attribute of the audio, double click
      the "Return Preload Attribute" button.</p>
    <button ondblclick="MyAudio()"
      Return Preload Attribute
    <p id="test"></p>
        var a = document.getElementById("Test_Audio");
        function MyAudio() {
            var a =
              "test").innerHTML = a;


  • Before clicking the button: 

  • After clicking the button: 

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

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


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