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AudioContext.resume()

The resume() method of the AudioContext Interface resumes the progression of time in an audio context that has previously been suspended.

This method will cause an INVALID_STATE_ERR exception to be thrown if called on an OfflineAudioContext.

Syntax

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

Returns

A Promise that resolves with void. The promise is rejected if the context has already been closed.

Example

The following snippet is taken from our AudioContext states demo (see it running live.) When the suspend/resume button is clicked, the AudioContext.state is queried — if it is running, suspend() is called; if it is suspended, resume() is called. In each case, the text label of the button is updated as appropriate once the promise resolves.

susresBtn.onclick = function() {
  if(audioCtx.state === 'running') {
    audioCtx.suspend().then(function() {
      susresBtn.textContent = 'Resume context';
    });
  } else if(audioCtx.state === 'suspended') {
    audioCtx.resume().then(function() {
      susresBtn.textContent = 'Suspend context';
    });  
  }
}

Specifications

Specification Status Comment
Web Audio API
The definition of 'close()' 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 ? ? ? ? ? ? 43.0

See also

Document Tags and Contributors

 Contributors to this page: maruhiro, chrisdavidmills
 Last updated by: maruhiro,