The copyFromChannel()
method of the AudioBuffer
interface copies the samples from the specified channel of the AudioBuffer
to the destination array.
Syntax
myArrayBuffer.copyFromChannel(destination, channelNumber, startInChannel);
Parameters
- destination
- A
Float32Array
to copy the channel data to. - channelNumber
- The channel number of the current AudioBuffer to copy the channel data from. If channelNumber is greater than or equal to
AudioBuffer.numberOfChannels
, anINDEX_SIZE_ERR
will be thrown. - startInChannel Optional
- An optional offset to copy the data from. If startInChannel is greater than
AudioBuffer.length
, anINDEX_SIZE_ERR
will be thrown.
Return value
Void.
Example
var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); var anotherArray = new Float32Array; myArrayBuffer.copyFromChannel(anotherArray, 1, 0);
Specification
Specification | Status | Comment |
---|---|---|
Web Audio API The definition of 'copyFromChannel' 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.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 14 | Yes | 25 | No | 15 | 6 |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | Yes | 14 | Yes | 26 | No | 15 | ? |
See also
Document Tags and Contributors
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Jedipedia,
fscholz,
erikadoyle,
halfbyte,
jpmedley,
eharris,
teoli,
chrisdavidmills
Last updated by:
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