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HTML | DOM Audio defaultMuted Property

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The Audio defaultMuted property is used for setting or returning whether the audio should be muted by default or not. The audio defaultMuted property cannot change the current mute state, it only affects the default muted state. 


  • Return the deafaultMuted property:
  • Set the defaultMuted property:
audioObject.defaultMuted = true|false

Property Values:

  • true|false: It is used to specify whether an audio should automatically start playing as soon as it is loaded or not. By default, it is set to false.

Below program illustrates the Audio defaultMuted Property: 

Example: Setting the audio to be muted by default. 


<!DOCTYPE html>
        Audio defaultMuted Property
<body style="text-align: center">
    <h1 style="color: green">
    <h2 style="font-family: Impact">
      Audio defaultMuted Property
    <audio id="Test_Audio" controls>
        <source src="sample1.ogg" type="audio/ogg">
        <source src="sample1.mp3" type="audio/mpeg">
    <p>To set the defaultMuted property,
      double click the "Set Mute By Default" button.</p>
    <button ondblclick="My_Audio()">
      Set Mute By Default
    <p id="test"></p>
        var a = document.getElementById("Test_Audio");
        function My_Audio() {
            a.defaultMuted = true;


  • Before clicking the button: 

  • After clicking the button: 

Supported Browsers: The browser supported by HTML | DOM Audio defaultMuted Property are listed below:

  • Google Chrome 15 and above
  • Edge 12 and above
  • Firefox 11 and above
  • Opera 12.1 and above
  • Apple Safari 6 and above
  • Internet Explorer not supported

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Last Updated : 13 Jul, 2022
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