GainNode: GainNode() constructor

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2021.

The GainNode() constructor of the Web Audio API creates a new GainNode object which is an AudioNode that represents a change in volume.

new GainNode(context, options)

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.
channelCount: Represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node. (See AudioNode.channelCount for more information.) Its usage and precise definition depend on the value of channelCountMode.
channelCountMode: Represents an enumerated value describing the way channels must be matched between the node's inputs and outputs. (See AudioNode.channelCountMode for more information including default values.)
channelInterpretation: Represents an enumerated value describing the meaning of the channels. This interpretation will define how audio up-mixing and down-mixing will happen. The possible values are "speakers" or "discrete". (See AudioNode.channelCountMode for more information including default values.)

A new GainNode object instance.

Specification
Web Audio API # dom-gainnode-constructor-gainnode

BCD tables only load in the browser