AnalyserNode class

The interface represents a node able to provide real-time frequency and time-domain analysis information. It is an AudioNode that passes the audio stream unchanged from the input to the output, but allows you to take the generated data, process it, and create audio visualizations. An has exactly one input and one output. The node works even if the output is not connected.

EventTarget

AudioNode

AnalyserNode

Number of inputs 1

Number of outputs 1 (but may be left unconnected)

Channel count mode "max"

Channel count 2

Channel interpretation "speakers"

Implemented types

• AudioNode

Available extensions

• PropsAnalyserNode
• PropsAudioNode
• PropsEventTarget

Annotations

• @JS()
• @staticInterop

Constructors

AnalyserNode(BaseAudioContext context, [AnalyserOptions? options])

factory

Properties

channelCount ↔ int

Available on AudioNode, provided by the PropsAudioNode extension

getter/setter pair

channelCountMode ↔ ChannelCountMode

Available on AudioNode, provided by the PropsAudioNode extension

getter/setter pair

channelInterpretation ↔ ChannelInterpretation

Available on AudioNode, provided by the PropsAudioNode extension

getter/setter pair

context → BaseAudioContext

Available on AudioNode, provided by the PropsAudioNode extension

no setter

fftSize ↔ int

Available on AnalyserNode, provided by the PropsAnalyserNode extension

getter/setter pair

frequencyBinCount → int

Available on AnalyserNode, provided by the PropsAnalyserNode extension

no setter

hashCode → int

The hash code for this object.

no setter, inherited

maxDecibels ↔ double

Available on AnalyserNode, provided by the PropsAnalyserNode extension

getter/setter pair

minDecibels ↔ double

Available on AnalyserNode, provided by the PropsAnalyserNode extension

getter/setter pair

numberOfInputs → int

Available on AudioNode, provided by the PropsAudioNode extension

no setter

numberOfOutputs → int

Available on AudioNode, provided by the PropsAudioNode extension

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

smoothingTimeConstant ↔ double

Available on AnalyserNode, provided by the PropsAnalyserNode extension

getter/setter pair

Methods

addEventListener(String type, EventListener? callback, [dynamic options]) → void

Available on EventTarget, provided by the PropsEventTarget extension

connect(AudioNode destinationNode, [int? output = 0, int? input = 0]) → AudioNode

Available on AudioNode, provided by the PropsAudioNode extension

disconnect([AudioNode? destinationNode, int? output, int? input]) → void

Available on AudioNode, provided by the PropsAudioNode extension

dispatchEvent(Event event) → bool

Available on EventTarget, provided by the PropsEventTarget extension

getByteFrequencyData(Uint8List array) → void

Available on AnalyserNode, provided by the PropsAnalyserNode extension

getByteTimeDomainData(Uint8List array) → void

Available on AnalyserNode, provided by the PropsAnalyserNode extension

getFloatFrequencyData(Float32List array) → void

Available on AnalyserNode, provided by the PropsAnalyserNode extension

getFloatTimeDomainData(Float32List array) → void

Available on AnalyserNode, provided by the PropsAnalyserNode extension

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

removeEventListener(String type, EventListener? callback, [dynamic options]) → void

Available on EventTarget, provided by the PropsEventTarget extension

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited