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createConstantSource() 是 BaseAudioContext 接口的一个方法， 用于生成一个 ConstantSourceNode 对象, 该对象是一个输出单信道（one-channel）音频信号的音频源，这些音频信号都拥有一个恒定的样本值。
Syntax
var constantSourceNode = AudioContext.createConstantSource()
Parameters
None.
Returns
A ConstantSourceNode instance.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Web Audio API createConstantSource() |
Working Draft | Initial definition. |
Browser Compatibility
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This compatibility table still uses the old format,
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| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 56.0 | (Yes) | ? | 43 | ? |
Implemented on AudioContext |
10.0webkit | (Yes) | 未实现 | 15.0webkit 22 (unprefixed) |
6.0webkit |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|
| Basic support | 未实现 | 56.0 | (Yes) | ? | 43 | ? | 56.0 |
Implemented on AudioContext |
? | (Yes) | 26.0 | ? | ? | ? | 33.0 |