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class GainNode

package js.html.audio

extends AudioNode › EventTarget

@:native("GainNode")

Available on js

The GainNode interface represents a change in volume. It is an AudioNode audio-processing module that causes a given gain to be applied to the input data before its propagation to the output. A GainNode always has exactly one input and one output, both with the same number of channels.

Documentation GainNode by Mozilla Contributors, licensed under CC-BY-SA 2.5.

See also:

Constructor

new(context:BaseAudioContext, ?options:Null<GainOptions>)

Throws:

null

DOMError

Variables

read onlygain:AudioParam

Is an a-rate AudioParam representing the amount of gain to apply. You have to set AudioParam.value or use the methods of AudioParam to change the effect of gain.

Inherited Variables

Defined by AudioNode

channelCount:Int

Represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node. Its usage and precise definition depend on the value of AudioNode.channelCountMode.

channelCountMode:ChannelCountMode

Represents an enumerated value describing the way channels must be matched between the node's inputs and outputs.

channelInterpretation: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".

read onlycontext:BaseAudioContext

Returns the associated BaseAudioContext, that is the object representing the processing graph the node is participating in.

read onlynumberOfInputs:Int

Returns the number of inputs feeding the node. Source nodes are defined as nodes having a numberOfInputs property with a value of 0.

read onlynumberOfOutputs:Int

Returns the number of outputs coming out of the node. Destination nodes — like AudioDestinationNode — have a value of 0 for this attribute.

Inherited Methods

Defined by AudioNode

@:value({ output : 0 })connect(destination:AudioParam, output:Int = 0):Void

@:value({ input : 0, output : 0 })connect(destination:AudioNode, output:Int = 0, input:Int = 0):AudioNode

Allows us to connect the output of this node to be input into another node, either as audio data or as the value of an AudioParam.

Throws:

null

DOMError

disconnect(destination:AudioParam, output:Int):Void

disconnect():Void

disconnect(output:Int):Void

disconnect(destination:AudioNode):Void

disconnect(destination:AudioNode, output:Int):Void

disconnect(destination:AudioNode, output:Int, input:Int):Void

disconnect(destination:AudioParam):Void

Allows us to disconnect the current node from another one it is already connected to.

Throws:

null

DOMError

Defined by EventTarget

addEventListener(type:String, listener:Function, ?options:EitherType<AddEventListenerOptions, Bool>, ?wantsUntrusted:Bool):Void

addEventListener(type:String, listener:EventListener, ?options:EitherType<AddEventListenerOptions, Bool>, ?wantsUntrusted:Bool):Void

Register an event handler of a specific event type on the EventTarget.

Throws:

null

DOMError

dispatchEvent(event:Event):Bool

Dispatch an event to this EventTarget.

Throws:

null

DOMError

removeEventListener(type:String, listener:Function, ?options:EitherType<EventListenerOptions, Bool>):Void

removeEventListener(type:String, listener:EventListener, ?options:EitherType<EventListenerOptions, Bool>):Void

Removes an event listener from the EventTarget.

Throws:

null

DOMError