The HTMLMediaElement.defaultPlaybackRate property indicates the default playback rate for the media.


var dSpeed = video.defaultPlaybackRate;
audio.defaultPlaybackRate = 1.0;


A double. 1.0 is "normal speed," values lower than 1.0 make the media play slower than normal, higher values make it play faster. The value 0.0 is invalid and throws a NOT_SUPPORTED_ERR exception.


var obj = document.createElement('video');
console.log(obj.defaultPlaybackRate); // 1


Specification Status Comment
HTML Living Standard
The definition of 'HTMLMediaElement.defaultPlaybackRate' in that specification.
Living Standard No change from HTML5
The definition of 'HTMLMediaElement.defaultPlaybackRate' in that specification.
Recommendation Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support Yes Yes209 ? ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes Yes Yes20 ? ? ?

See also

Document Tags and Contributors

Contributors to this page: sideshowbarker, fscholz, erikadoyle, markg
Last updated by: sideshowbarker,