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
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
copyToChannel | Chrome Full support 14 | Edge Full support 13 | 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 ? | Samsung Internet Android Full support 1.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown