HTMLMediaElement: ratechange event

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The ratechange event is fired when the playback rate has changed.

Bubbles No
Cancelable No
Interface Event
Target Element
Default Action None
Event handler property GlobalEventHandlers.onratechange
Specification HTML5 media


These examples add an event listener for the HTMLMediaElement's ratechange event, then post a message when that event handler has reacted to the event firing.

Using addEventListener():

const video = document.querySelector('video');

video.addEventListener('ratechange', (event) => {
  console.log('The playback rate changed.');

Using the onratechange event handler property:

const video = document.querySelector('video');

video.onratechange = (event) => {
  console.log('The playback rate changed.');


Specification Status
HTML Living Standard
The definition of 'ratechange media event' in that specification.
Living Standard
The definition of 'ratechange media event' in that specification.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
ratechange eventChrome Full support 3Edge Full support YesFirefox Full support 3.5IE Full support 9Opera Full support 10.5Safari Full support 3.1WebView Android Full support YesChrome Android Full support 18Firefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes


Full support  
Full support

See Also