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AudioNode.context

The read-only context property of the AudioNode interface returns the associated BaseAudioContext, that is the object representing the processing graph the node is participating in.

Syntax

var aContext = anAudioNode.context;

Value

The AudioContext or OfflineAudioContext object that was used to construct this AudioNode.

Example

const AudioContext = window.AudioContext || window.webkitAudioContext;
const audioCtx = new AudioContext();

const oscillator = audioCtx.createOscillator();
const gainNode = audioCtx.createGain();
oscillator.connect(gainNode).connect(audioCtx.destination);

console.log(oscillator.context); // AudioContext
console.log(oscillator.context === audioCtx); // true

Specifications

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

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 14 Yes 25 No 15 6
Feature Android webview Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic support Yes 14 Yes 26 No 15 ?

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/AudioNode/context