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 |