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HTML Audio/Video DOM defaultPlaybackRate Property

HTML audio Tag Reference HTML Audio/Video DOM Reference

Example

Set video to slow motion by default:

myVid=document.getElementById("video1");
myVid.defaultPlaybackRate=0.5;

Try it yourself »

Definition and Usage

The defaultPlaybackRate property sets or returns the default playback speed of the audio/video.

Setting this property will only change the default playback speed, not the current. To change the current playback speed, use the playbackRate property.

Browser Support

The defaultPlaybackRate property is only supported in Internet Explorer 10 and Chrome.

Note: The defaultPlaybackRate property is not supported in Internet Explorer 9 and earlier, Firefox, Opera, or Safari.

Syntax

Set the defaultPlaybackRate property:

audio|video.defaultPlaybackRate=playbackspeed

Return the defaultPlaybackRate property:

audio|video.defaultPlaybackRate

Property Values

Value	Description
playbackspeed	Indicates the default playback speed of the audio/video. Example values: 1.0 is normal speed 0.5 is half speed (slower) 2.0 is double speed (faster) -1.0 is backwards, normal speed -0.5 is backwards, half speed