The attribute defaultMuted that sets or returns whether the audio/video is muted by default in HTML5-H5 Tutorial-php.cn

The attribute defaultMuted that sets or returns whether the audio/video is muted by default in HTML5

黄舟

Release： 2017-11-08 11:08:10

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Example

SettingsVideoDefault mute:

myVid=document.getElementById("video1");
myVid.defaultMuted=true;

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Definition and usage

defaultMuted PropertiesSet or returnAudio/Whether the video is muted by default.

Setting this property will only change the default mute state, not the current one. To change the current muted state, use the muted attribute.

Browser support

Only Google Chrome supports the defaultMuted attribute.

Syntax

Set the defaultMuted attribute:

audio|video.defaultMuted=true|false

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Return the defaultMuted attribute:

audio|video.defaultMuted

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Attribute value

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

Technical Details

Return Value	Boolean value. true\|false
Default value:	false

Instance

Set video default Mute:

<!DOCTYPE html> 
<html> 
<body> 

<p>
	<button onclick="getMuted()" type="button">该视频默认是静音的吗？</button>
	<button onclick="setToMuted()" type="button">把视频设置为默认静音，并重载视频</button>
</p>
<video id="video1" controls="controls">
	<source src="/kf51/demo/mov_bbb.mp4" type="video/mp4">
	<source src="/kf51/demo/mov_bbb.ogg" type="video/ogg">
	您的浏览器不支持 video 标签。
</video>

<script>
var myVid = document.getElementById("video1");
function getMuted() { 
	alert(myVid.defaultMuted);
} 
function setToMuted() { 
	myVid.defaultMuted = true;
	myVid.load()
} 
</script> 

</body> 
</html>

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