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


var audioCtx = new AudioContext();
audioCtx.onstatechange = function() { ... };


The following snippet is taken from our AudioContext states demo (see it running live.) The onstatechange hander is used to log the current state to the console every time it changes.

audioCtx.onstatechange = function() {


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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 43.0 40.0 (40.0)  Not supported ? ?
Feature Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? ? ? ? ? ? ?

See also


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