AudioBuffer.copyToChannel()

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copyToChannel() 方法在 AudioBuffer interface copies the samples to the specified channel of the AudioBuffer , from the source array.

句法

myArrayBuffer.copyToChannel(source, channelNumber, startInChannel);

参数

source: 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 >= AudioBuffer.numberOfChannels ， INDEX_SIZE_ERR will be thrown.
startInChannel 可选: An optional offset to copy the data to. If startInChannel 大于 AudioBuffer.length ， INDEX_SIZE_ERR will be thrown.

范例

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);

规范

规范	状态	注释
Web 音频 API The definition of 'copyToChannel' in that specification.	工作草案

浏览器兼容性

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. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`copyToChannel`	Chrome 14	Edge 13	Firefox 25	IE 不支持 No	Opera 15	Safari 6	WebView Android Yes	Chrome Android 18	Firefox Android 26	Opera Android 14	Safari iOS ?	Samsung Internet Android 1.0

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完整支持
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使用 Web 音频 API

元数据

最后修改： 2020 年 1 月 22 日

Web 音频 API
AudioBuffer
构造函数
1. AudioBuffer()
特性
方法
1. copyFromChannel()
2. copyToChannel()
3. getChannelData()
Related pages for Web Audio API

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句法

参数

范例

规范

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图例

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