The copyToChannel()
method of the AudioBuffer
interface copies the samples to the specified channel of the AudioBuffer
, from the source array.
Syntax
myArrayBuffer.copyToChannel(source, channelNumber, startInChannel);
Parameters
- source
- A
Float32Array
that the channel data will be copied from. - channelNumber
- The channel number of the current
AudioBuffer
to copy the channel data to. If channelNumber is greater than or equal toAudioBuffer.numberOfChannels
, anINDEX_SIZE_ERR
will be thrown. - startInChannel Optional
- An optional offset to copy the data to. If startInChannel is greater than
AudioBuffer.length
, anINDEX_SIZE_ERR
will be thrown.
Example
var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); var anotherArray = new Float32Array; // Copy channel data from second channel of myArrayBuffer. myArrayBuffer.copyFromChannel(anotherArray,1,0); // Copy data from anotherArray to first channel of myArrayBuffer. Both channels have the same data now. myArrayBuffer.copyToChannel (anotherArray,0,0);
Specification
Specification | Status | Comment |
---|---|---|
Web Audio API The definition of 'copyToChannel' in that specification. |
Working Draft |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|---|
Basic support | 14.0 webkit | (Yes) | 27 (27) | No support | 15 webkit 22 (unprefixed) |
No support |
Unprefixed | 43.0 | (Yes) | ? | ? | ? | No support |
Feature | Android | Android Webview | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|---|---|
Basic support | No support | ? | (Yes) | 25 (25) | 1.2 | No support | No support | No support | 28.0 webkit |
Unprefixed | No support | No support | (Yes) | ? | ? | ? | ? | No support | 43.0 |
See also
Document Tags and Contributors
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Contributors to this page:
erikadoyle,
halfbyte,
fscholz,
jpmedley,
eharris,
anirudh_venkatesh,
teoli,
chrisdavidmills
Last updated by:
erikadoyle,