index.md

---

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

---

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

The channelCount property of the {{ domxref("AudioNode") }} interface represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node.

channelCount's usage and precise definition depend on the value of {{domxref("AudioNode.channelCountMode")}}:

• It is ignored if the channelCountMode value is max.

• It is used as a maximum value if the channelCountMode value is clamped-max.

• It is used as the exact value if the channelCountMode value is explicit.

Value

An integer.

Examples

const audioCtx = new AudioContext();

const oscillator = audioCtx.createOscillator();
const gainNode = audioCtx.createGain();

oscillator.connect(gainNode);
gainNode.connect(audioCtx.destination);

oscillator.channelCount;

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• Using the Web Audio API