BiquadFilterNode class abstract

The BiquadFilterNode represents a simple low-order filter, and is created using the BaseAudioContext.createBiquadFilter method. It is an AudioNode that can represent different kinds of filters, tone control devices, and graphic equalizers. A BiquadFilterNode always has exactly one input and one output.

Number of inputs 1
Number of outputs 1
Channel count mode "max"
Channel count 2 (not used in the default count mode)
Channel interpretation "speakers"

API documentation sourced from MDN Web Docs.

Implemented types

Constructors

BiquadFilterNode()

Properties

channelCount ↔ int
The channelCount property of the AudioNode represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node.
getter/setter pairinherited
channelCountMode ↔ ChannelCountMode
The channelCountMode property of the AudioNode represents an enumerated value describing the way channels must be matched between the node's inputs and outputs.
getter/setter pairinherited
channelInterpretation ↔ ChannelInterpretation
The channelInterpretation property of the AudioNode interface represents an enumerated value describing how input channels are mapped to output channels when the number of inputs/outputs is different. For example, this setting defines how a mono input will be up-mixed to a stereo or 5.1 channel output, or how a quad channel input will be down-mixed to a stereo or mono output.
getter/setter pairinherited
context → BaseAudioContext
The read-only context property of the AudioNode returns the associated BaseAudioContext, that is the object representing the processing graph the node is participating in.
no setterinherited
detune → AudioParam
The detune property of the BiquadFilterNode is an a-rate AudioParam representing detuning of the frequency in cents.
no setter
frequency → AudioParam
The frequency property of the BiquadFilterNode is an a-rate AudioParam — a double representing a frequency in the current filtering algorithm measured in hertz (Hz).
no setter
gain → AudioParam
The gain property of the BiquadFilterNode is an a-rate AudioParam — a double representing the gain used in the current filtering algorithm.
no setter
hashCode → int
The hash code for this object.
no setterinherited
numberOfInputs → int
The numberOfInputs property of the AudioNode returns the number of inputs feeding the node. Source nodes are defined as nodes having a numberOfInputs property with a value of 0.
no setterinherited
numberOfOutputs → int
The numberOfOutputs property of the AudioNode returns the number of outputs coming out of the node. Destination nodes — like AudioDestinationNode — have a value of 0 for this attribute.
no setterinherited
Q → AudioParam
The Q property of the BiquadFilterNode is an a-rate AudioParam, a double representing a Q factor, or quality factor.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
type ↔ BiquadFilterType
The type property of the BiquadFilterNode is a string (enum) value defining the kind of filtering algorithm the node is implementing.
getter/setter pair

Methods

connect(AudioNode destinationNode, [int output, int input]) → AudioNode
The connect() method of the AudioNode lets you connect one of the node's outputs to a target, which may be either another AudioNode (thereby directing the sound data to the specified node). See also AudioNode.connectParam
inherited
connectParam(AudioParam destinationParam, [int output, int input]) → void
This is a variant of AudioNode.connect with a DestinationParam argument instead of an AudioNode. Note : The W3C recommandation uses just one verb for both.
inherited
disconnect([AudioNode destinationParamOrOutput, int output, int input]) → void
The disconnect() method of the AudioNode lets you disconnect one or more nodes from the node on which the method is called. See also AudioNode.disconnectParam
inherited
disconnectParam(AudioParam destinationParam, [int output, int input]) → void
This is a variant of AudioNode.disconnect with a DestinationParam argument instead of an AudioNode. Note : The W3C recommandation uses just one verb for both.
inherited
getFrequencyResponse(TauFloat32Array frequencyHz, TauFloat32Array magResponse, TauFloat32Array phaseResponse) → void
The getFrequencyResponse() method of the BiquadFilterNode interface takes the current filtering algorithm's settings and calculates the frequency response for frequencies specified in a specified array of frequencies.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited