The oncomplete event handler of the OfflineAudioContext interface is called when the audio processing is terminated, that is when the complete event (of type OfflineAudioCompletionEvent) is raised.


var offlineAudioCtx = new OfflineAudioContext();
offlineAudioCtx.oncomplete = function() { ... }


When processing is complete, you might want to use the oncomplete handler the prompt the user that the audio can now be played, and enable the play button.

offlineAudioCtx.oncomplete = function() {
  console.log('Offline audio processing now complete');
  showModalDialog('Song processed and ready to play');
  playBtn.disabled = false;


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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
oncompleteChrome Full support 14Edge Full support 12Firefox Full support 25IE No support NoOpera Full support 15Safari Full support 6WebView Android Full support YesChrome Android Full support 18Firefox Android Full support 26Opera Android Full support 14Safari iOS ? Samsung Internet Android Full support 1.0


Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown

See also