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.
An unsigned long.
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.
| Specification |
|---|
| Web Audio API # dom-audiodestinationnode-maxchannelcount |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
maxChannelCount |
27 | 12 | 25 | No | 15 | 14.1
7–14.1This property always returns0.
|
≤37 | 27 | 25 | 15 | 14.5
7–14.5This property always returns0.
|
1.5 |
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https://developer.mozilla.org/en-US/docs/Web/API/AudioDestinationNode/maxChannelCount