The GainNode()
constructor of the Web Audio API creates a new GainNode
object which is an AudioNode
that represents a change in volume.
The GainNode()
constructor of the Web Audio API creates a new GainNode
object which is an AudioNode
that represents a change in volume.
js
new GainNode(context, options)
context
A reference to a BaseAudioContext
, e.g. 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
.
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 |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
GainNode |
55 | 79 | 53 | No | 42 | 14.1 | 55 | 55 | 53 | 42 | 14.5 | 6.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/GainNode/GainNode