index.md

---

title: AudioDestinationNode.maxChannelCount
slug: Web/API/AudioDestinationNode/maxChannelCount
page-type: web-api-instance-property
browser-compat: api.AudioDestinationNode.maxChannelCount

---

{{ APIRef("Web Audio API") }}

The maxchannelCount property of the {{ domxref("AudioDestinationNode") }} interface is an unsigned long defining the maximum amount of channels that the physical device can handle.

The {{domxref("AudioNode.channelCount")}} property can be set between 0 and this value (both included). If maxChannelCount is 0, like in {{domxref("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:

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

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• Using the Web Audio API