AudioNode: channelCountMode property
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.
Value
The possible values of the channelCountMode
enumerated value, and their meanings are:
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.The following AudioNode children default to this value:
GainNode
,DelayNode
,ScriptProcessorNode
,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
.The following AudioNode children default to this value:
PannerNode
,ConvolverNode
,DynamicsCompressorNode
explicit
-
The number of channels is defined by the value of
channelCount
.The following AudioNode children default to this value:
AudioDestinationNode
,AnalyserNode
,ChannelSplitterNode
,ChannelMergerNode
Note: In older versions of the spec, the default for a ChannelSplitterNode
was max
.
Examples
js
const audioCtx = new AudioContext();
const oscillator = audioCtx.createOscillator();
const gainNode = audioCtx.createGain();
oscillator.connect(gainNode);
gainNode.connect(audioCtx.destination);
oscillator.channelCountMode = "explicit";
Specifications
Specification |
---|
Web Audio API # dom-audionode-channelcountmode |
Browser compatibility
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