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)

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 (-∞,+∞). The default is 1.

A new GainNode object instance.

Specification	Status	Comment
Web Audio API The definition of 'GainNode()' in that specification.	Working Draft	Initial definition.

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`GainNode()` constructor	Chrome Full support 55 Notes Full support 55 Notes Notes Before Chrome 59, the default values were not supported.	Edge Full support ≤79	Firefox Full support 53	IE No support No	Opera Full support 42	Safari ?	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 53	Opera Android Full support 42	Safari iOS ?	Samsung Internet Android Full support 6.0 Notes Full support 6.0 Notes Notes Before Samsung Internet 7.0, the default values were not supported.