AudioNode: channelCount property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

The channelCount property of the 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 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;