The GainNode() constructor of the Web Audio API creates a new GainNode object which an AudioNode that represents a change in volume.
Note: You should typically call AudioContext.createGain() to create a gain node.
Syntax
var gainNode = new GainNode(context, options)
Parameters
Inherits parameters from the AudioNodeOptions dictionary.
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.
Return value
A new GainNode object instance.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Web Audio API The definition of 'GainNode()' in that specification. |
Working Draft | Initial definition. |
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.
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| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Chrome
Full support
55
| Edge ? | Firefox Full support 53 | IE No support No | Opera Full support 42 | Safari ? | WebView Android
Full support
55
| Chrome Android
Full support
55
| Edge Mobile ? | Firefox Android Full support 53 | Opera Android Full support 42 | Safari iOS ? | Samsung Internet Android Full support 6.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- See implementation notes.
- See implementation notes.