The stop method of the OscillatorNode interface specifies the time to stop playing the tone. Its parameter is optional and defaults to 0.


oscillator.stop(when); // stop playing oscillator at when


when Optional
An optional double representing the audio context time when the oscillator should stop. If a value is not included, it defaults to 0. If the time is equal to or before the current audio context time, the oscillator will stop playing immediately.


The following example shows basic usage of an AudioContext to create an oscillator node. For an applied example, check out our Violent Theremin demo (see app.js for relevant code).

// create web audio api context
var audioCtx = new (window.AudioContext || window.webkitAudioContext)();

// create Oscillator node
var oscillator = audioCtx.createOscillator();


oscillator.stop(audioCtx.currentTime + 2); // stop 2 seconds after the current time


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

Browser compatibility

No compatibility data found for api.OscillatorNode.stop.
Check for problems with this page or contribute missing data to mdn/browser-compat-data.

See also