我们的志愿者还没有将这篇文章翻译为 中文 (简体)。加入我们帮助完成翻译！
您也可以阅读此文章的English (US)版。
This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The GainNode() constructor creates a new GainNode object which an AudioNode that represents a change in volume.
You should typically call AudioContext.createGain() to create a gain node.
Syntax
var gainNode = new GainNode(context, options)
Parameters
context- A reference to an
AudioContext. optionsOptional- Options are as follows:
gain: The amount of gain to apply. This parameter is a-rate and it's nominal range is (-∞,+∞). The default is1.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Web Audio API The definition of 'GainNode()' in that specification. |
Working Draft | Initial definition. |
Browser Compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 55[1] | ? | ? | 44 | ? |
| Feature | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | 55[1] | 55[1] | ? | ? | ? | 44 | ? |
[1] Before Chrome 59, the default values were not supported.