Web/API/BaseAudioContext/onstatechange

The onstatechange property of the BaseAudioContext interface defines an event handler function to be called when the statechange event fires: this occurs when the audio context's state changes.

Syntax

baseAudioContext.onstatechange = function() { ... };

Example

The following snippet is taken from our AudioContext states demo ([[../../../../../../../mdn.github.io/webaudio-examples/audiocontext-states/index|see it running live]].) The onstatechange hander is used to log the current state to the console every time it changes.

audioCtx.onstatechange = function() {
  console.log(audioCtx.state);
}

Specifications

Specification	Status	Comment
Web Audio APIThe definition of 'onstatechange' in that specification.	Working Draft

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`onstatechange`	Chrome Full support 43	Edge Full support ≤79	Firefox Full support 53 Notes' Full support 53 Notes' Notes' Originally implemented on `AudioContext` in Firefox 40.	IE No support No	Opera Full support Yes	Safari Full support 9 Prefixed' Full support 9 Prefixed' Prefixed' Implemented with the vendor prefix: webkit	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support 53 Notes' Full support 53 Notes' Notes' Originally implemented on `AudioContext` in Firefox Android 40.	Opera Android Full support Yes	Safari iOS Full support 9 Prefixed' Full support 9 Prefixed' Prefixed' Implemented with the vendor prefix: webkit	Samsung Internet Android Full support Yes

Legend

Full support: Full support
No support: No support
See implementation notes.': See implementation notes.
Requires a vendor prefix or different name for use.': Requires a vendor prefix or different name for use.