AudioDestinationNode: maxChannelCount property

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.

Value

An unsigned long.

Examples

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

js
const audioCtx = new AudioContext();
const 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
Web Audio API
# dom-audiodestinationnode-maxchannelcount

Browser compatibility

desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
maxChannelCount

See also