W3cubDocs

GainNode.constructor

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.

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
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	55 55 Before Chrome 59, the default values were not supported.	?	53	No	42	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	55 55 Before Chrome 59, the default values were not supported.	55 55 Before Chrome 59, the default values were not supported.	?	53	42	?	6.0

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/GainNode/GainNode