HTML Reference Manual

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HTML Audio/Video DOM defaultMuted attribute

The defaultMuted attribute reflects the silent state of the HTML attribute, indicating whether the audio output of the media element should be muted by default. This attribute has no dynamic effect. To mute and unmute the audio output, please use the mute attribute.

　HTML Audio/Video DOM Reference Manual

Online Example

Set video to default muted:

Example

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>HTML Audio/video defaultMuted attribute usage-Basic Tutorial(oldtoolbag.com)</<title>
</<head>
<body>
<button onclick="getMuted()" type="button">Is the video muted by default?</button>
<button onclick="setToMuted()" type="button">Set video to default muted state and reload video</button>
<br>　
<video id="video1" controls="controls">
　　<source src="movie.mp4" type="video/mp4">
　　<source src="movie.ogg" type="video/ogg">
　　Your browser does not support HTML5　video tag.
</video>
<script>
myVid=document.getElementById("video"1);
function getMuted()
{　
　　alert(myVid.defaultMuted);
}　
function setToMuted()
{　
　　myVid.defaultMuted=true;
　　myVid.load()
}　
</script>　　
</body>
</html>

Test to see ‹/›

Definition and Usage

The defaultMuted attribute sets or returns whether audio should be muted by default/video.

Setting this attribute will only change the default muted state, not the current muted state. To change the current muted state, please use muted （Muted）attribute.

Browser Compatibility

IEFirefoxOperaChromeSafari

Only Chrome and Safari 6 Supports defaultMuted attribute.

Syntax

Set defaultMuted attribute:

audio|video.defaultMuted=true|false

Return defaultMuted attribute:

audio|video.defaultMuted

Attribute value

Value	Description
true	Indicates audio/The video is muted by default.
false	Default. Indicates audio/The video is not muted by default.

Technical Details

Return value:	Boolean value, true\|false
Default value:	false

　HTML Audio/Video DOM Reference Manual

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