HTML Audio/Video DOM defaultPlaybackRate Property

❮ HTML Audio/Video DOM Reference

Example

Set video to slow motion by default:

let vid = document.getElementById("myVideo");
vid.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 numbers in the table specify the first browser version that fully supports the property.

Property
defaultPlaybackRate Yes 9.0 20.0 Not supported Yes

Syntax

Return the defaultPlaybackRate property:

audio|video.defaultPlaybackRate

Set the defaultPlaybackRate property:

audio|video.defaultPlaybackRate=playbackspeed

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

Technical Details

Return Value: Number, the default playback speed
Default Value: 1.0
❮ HTML Audio/Video DOM Reference
Copyright 1999-2023 by Refsnes Data. All Rights Reserved.