AudioContext: resume() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2021.

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

js
resume()

Parameters

None.

Return value

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

Examples

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.

js
susResBtn.onclick = () => {
  if (audioCtx.state === "running") {
    audioCtx.suspend().then(() => {
      susResBtn.textContent = "Resume context";
    });
  } else if (audioCtx.state === "suspended") {
    audioCtx.resume().then(() => {
      susResBtn.textContent = "Suspend context";
    });
  }
};

Specifications

Specification
Web Audio API
# dom-audiocontext-resume

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
resume
Chrome – Full support
Chrome 41 (Release date: 2015-03-03)
footnote Full support
Edge – Full support
Edge 14 (Release date: 2016-08-02)
footnote Full support
Firefox – Full support
Firefox 40 (Release date: 2015-08-11)
footnote Full support
Opera – Full support
Opera 28 (Release date: 2015-03-10)
footnote Full support
Safari – Full support
Safari 9 (Release date: 2015-09-30)
footnote Full support
Chrome Android – Full support
Chrome Android 41 (Release date: 2015-03-11)
footnote Full support
Firefox for Android – Full support
Firefox for Android 40 (Release date: 2015-08-11)
footnote Full support
Opera Android – Full support
Opera Android 28 (Release date: 2015-03-10)
footnote Full support
Safari on iOS – Full support
Safari on iOS 9 (Release date: 2015-09-16)
footnote Full support
Samsung Internet – Full support
Samsung Internet 4 (Release date: 2016-03-11)
footnote Full support
WebView Android – Full support
WebView Android 41 (Release date: 2015-03-11)
footnote Full support
WebView on iOS – Full support
WebView on iOS 9 (Release date: 2015-09-16)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also