AudioDestinationNode.maxChannelCount

The maxchannelCount property of the AudioDestinationNode interface is an unsigned long defining the maximum amount of channels that the physical device can handle.

The AudioNode.channelCount property can be set between 0 and this value (both included). If maxChannelCount is 0, like in OfflineAudioContext, the channel count cannot be changed.

Syntax

var audioCtx = new AudioContext();
var myDestination = audioCtx.destination;
myDestination.maxChannelCount = 2;

Value

An unsigned long.

Example

The following would set up a simple audio graph, featuring an AudioDestinationNode with maxChannelCount of 2:

var audioCtx = new AudioContext();
var source = audioCtx.createMediaElementSource(myMediaElement);
source.connect(gainNode);
audioCtx.destination.maxChannelCount = 2;
gainNode.connect(audioCtx.destination);

To see a more complete implementation, check out one of our MDN Web Audio examples, such as Voice-change-o-matic or Violent Theremin.

Specifications

Specification Status Comment
Web Audio API
The definition of 'maxChannelCount' 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)
6.0webkit
Feature Android Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? (Yes) 26.0 1.2 ? ? ? 33.0

See also

Document Tags and Contributors

 Contributors to this page: erikadoyle, fscholz, chrisdavidmills
 Last updated by: erikadoyle,