Home > Article > Web Front-end > The attribute defaultPlaybackRate that sets or returns the default playback speed of audio/video in H5
Example
Set video to the default low-speed playback:
myVid=document.getElementById("video1"); myVid.defaultPlaybackRate=0.5;
Definition and usage
defaultPlaybackRate AttributesSet or Returns the default playback speed of audio/video.
Setting this property will only change the default playback speed, not the current one. To change the current playback speed, use the playbackRate property.
Browser support
Only Google Chrome supports the defaultPlaybackRate attribute.
Syntax
Set the defaultPlaybackRate attribute:
audio|video.defaultPlaybackRate=playbackspeed
Return the defaultPlaybackRate attribute:
audio|video.defaultPlaybackRate
Attribute value
Value | Description |
playbackspeed |
Indicates the default playback speed of audio/video. Example value:
|
Technical details
Return value | Numeric value , the default playback speed |
Default value: | 1.0 |
Instance
Settings The video defaults to fast playback:
document.getElementById("myVideo").defaultPlaybackRate =5;
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