getChannelData

Summary

Returns the Float32Array representing the PCM audio data for the specific channel.

Method of apis/webaudio/AudioBuffer apis/webaudio/AudioBuffer

Syntax

var  = AudioBuffer.getChannelData(channel);

Parameters

channel

Data-type: unsigned long

The channel parameter is an index representing the particular channel to get data for. An index value of 0 represents the first channel. This index value MUST be less than numberOfChannels or an exception will be thrown.

Return Value

Returns an object of type

Float32Array

Examples

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate);
var nowBuffering = myArrayBuffer.getChannelData(channel);

Related specifications

Web Audio API: W3C Editor’s Draft

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