The channelCountMode
property of the AudioNode
interface represents an enumerated value describing the way channels must be matched between the node's inputs and outputs.
The possible values of channelCountMode
and their meanings are:
Value | Description | The following AudioNode children default to this value |
---|---|---|
max |
The number of channels is equal to the maximum number of channels of all connections. In this case, channelCount is ignored and only up-mixing happens. |
GainNode , DelayNode , ScriptProcessorNode , ChannelMergerNode , BiquadFilterNode , WaveShaperNode |
clamped-max |
The number of channels is equal to the maximum number of channels of all connections, clamped to the value of channelCount . |
PannerNode , ConvolverNode , DynamicsCompressorNode |
explicit |
The number of channels is defined by the value of channelCount . |
AudioDestinationNode , AnalyserNode , ChannelSplitterNode |
In older versions of the spec, the default for a ChannelSplitterNode
was max.
Syntax
var oscillator = audioCtx.createOscillator(); oscillator.channelCountMode = 'explicit';
Value
A enumerated value representing a channelCountMode.
Example
var AudioContext = window.AudioContext || window.webkitAudioContext; var audioCtx = new AudioContext(); var oscillator = audioCtx.createOscillator(); var gainNode = audioCtx.createGain(); oscillator.connect(gainNode); gainNode.connect(audioCtx.destination); oscillator.channelCountMode = 'explicit';
Specifications
Specification | Status | Comment |
---|---|---|
Web Audio API The definition of 'channelCountMode' in that specification. |
Working Draft |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
channelCountMode | Chrome Full support 14 | Edge Full support 12 | Firefox Full support 25 | IE No support No | Opera Full support 15 | Safari Full support 6 | WebView Android Full support Yes | Chrome Android Full support 18 | Firefox Android Full support 26 | Opera Android Full support 14 | Safari iOS Full support Yes | Samsung Internet Android Full support 1.0 |
Legend
- Full support
- Full support
- No support
- No support