GainNode()

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.
options Optional
Options are as follows:
  • gain: The amount of gain to apply. This parameter is a-rate and it's nominal range is (-āˆž,+āˆž). The default is 1.

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

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
GainNode() constructorChrome Full support 55
Notes
Full support 55
Notes
Notes Before Chrome 59, the default values were not supported.
Edge ? Firefox Full support 53IE No support NoOpera Full support 42Safari ? WebView Android Full support 55
Notes
Full support 55
Notes
Notes Before Chrome 59, the default values were not supported.
Chrome Android Full support 55
Notes
Full support 55
Notes
Notes Before Chrome 59, the default values were not supported.
Firefox Android Full support 53Opera Android Full support 42Safari iOS ? Samsung Internet Android Full support 6.0

Legend

Full support Ā 
Full support
No support Ā 
No support
Compatibility unknown Ā 
Compatibility unknown
See implementation notes.
See implementation notes.