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AudioNode.channelCount

The channelCount property of the AudioNode interface represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node.

channelCount's usage and precise definition depend on the value of AudioNode.channelCountMode:

It is ignored if the channelCountMode value is max.
It is used as a maximum value if the channelCountMode value is clamped-max.
It is used as the exact value if the channelCountMode value is explicit.

Syntax

var oscillator = audioCtx.createOscillator();
var channels = oscillator.channelCount;

Example

var AudioContext = window.AudioContext || window.webkitAudioContext;

var audioCtx = new AudioContext();

var oscillator = audioCtx.createOscillator();
var gainNode = audioCtx.createGain();

oscillator.connect(gainNode);
gainNode.connect(audioCtx.destination);

oscillator.channelCount;

Value

An integer.

Specifications

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

Browser compatibility

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	10.0webkit	(Yes)	25.0 (25.0)	No support	15.0webkit 22 (unprefixed)	(Yes)