PeriodicWave.PeriodicWave()

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PeriodicWave() constructor of the Web 音频 API creates a new PeriodicWave 对象实例。

句法

var myWave = new PeriodicWave(context, options);

参数

Inherits parameters from the AudioNodeOptions dictionary .

context


									BaseAudioContext

representing the audio context you want the node to be associated with.

选项 可选


								
									PeriodicWaveOptions

dictionary object defining the properties you want the


								PeriodicWave

to have (It also inherits the options defined in the PeriodicWaveConstraints dictionary.):

real : A Float32Array containing the cosine terms that you want to use to form the wave (equivalent to the real 参数对于 AudioContext.createPeriodicWave ).
imag : A Float32Array containing the sine terms that you want to use to form the wave (equivalent to the imag 参数对于 AudioContext.createPeriodicWave ).

返回值

新的 PeriodicWave 对象实例。

范例

var real = new Float32Array(2);
var imag = new Float32Array(2);
var ac = new AudioContext();
real[0] = 0;
imag[0] = 0;
real[1] = 1;
imag[1] = 0;
var options = {
  real : real,
  imag : imag,
  disableNormalization : false
}
var wave = new PeriodicWave(ac, options);

规范

规范	状态	注释
Web 音频 API The definition of 'PeriodicWave' 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
`PeriodicWave()` 构造函数	Chrome 55 55 Before Chrome 59, the default values were not supported.	Edge ≤79	Firefox 53	IE No	Opera 42	Safari ?	WebView Android 55 55 Before Chrome 59, the default values were not supported.	Chrome Android 55 55 Before Chrome 59, the default values were not supported.	Firefox Android 53	Opera Android 42	Safari iOS ?	Samsung Internet Android 6.0 6.0 Before Samsung Internet 7.0, the default values were not supported.

图例

完整支持
不支持
兼容性未知 ?

元数据

最后修改： 2020 年 1 月 22 日

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句法

参数

返回值

范例

规范

浏览器兼容性

图例

相关话题