OfflineAudioContext class

An AudioContext interface representing an audio-processing graph built from linked together AudioNodes. In contrast with a standard AudioContext, an OfflineAudioContext doesn't render the audio to the device hardware; instead, it generates it, as fast as it can, and outputs the result to an AudioBuffer.

MDN Reference

Implemented types

• BaseAudioContext

Available extensions

• BaseAudioContext$Typings
• EventTarget$Typings
• OfflineAudioContext$Typings

Annotations

• @JS()
• @staticInterop

Constructors

OfflineAudioContext.$1()

factory

OfflineAudioContext.$2(OfflineAudioContextOptions contextOptions)

factory

OfflineAudioContext.$3(num numberOfChannels, num length, num sampleRate)

factory

Properties

addEventListener → ({void Function<K$>(OfflineAudioContextEventMap<K$> type, dynamic listener(K$), [Object? options]) $1, void Function(String type, Object listener, [Object? options]) $2})

Available on OfflineAudioContext, provided by the OfflineAudioContext$Typings extension

Overload accessor: $1, $2

no setter

addEventListener ↔ void Function(String, [Object?, Object?])

Available on EventTarget, provided by the EventTarget$Typings extension

getter/setter pair

addEventListener → ({void Function<K$>(BaseAudioContextEventMap<K$> type, dynamic listener(K$), [Object? options]) $1, void Function(String type, Object listener, [Object? options]) $2})

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

Overload accessor: $1, $2

no setter

audioWorklet → AudioWorklet

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

Available only in secure contexts.

no setter

createAnalyser ↔ AnalyserNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createBiquadFilter ↔ BiquadFilterNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createBuffer ↔ AudioBuffer Function(num, num, num)

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createBufferSource ↔ AudioBufferSourceNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createChannelMerger ↔ ChannelMergerNode Function([num?])

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createChannelSplitter ↔ ChannelSplitterNode Function([num?])

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createConstantSource ↔ ConstantSourceNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createConvolver ↔ ConvolverNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createDelay ↔ DelayNode Function([num?])

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createDynamicsCompressor ↔ DynamicsCompressorNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createGain ↔ GainNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createIIRFilter ↔ IIRFilterNode Function(List<num>, List<num>)

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createOscillator ↔ OscillatorNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createPanner ↔ PannerNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createPeriodicWave ↔ PeriodicWave Function(Object, Object, [PeriodicWaveConstraints?])

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createScriptProcessor ↔ ScriptProcessorNode Function([num?, num?, num?])

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createStereoPanner ↔ StereoPannerNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

createWaveShaper ↔ WaveShaperNode Function()

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

currentTime → num

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

MDN Reference

no setter

decodeAudioData ↔ Future<AudioBuffer> Function(ByteBuffer, [DecodeSuccessCallback?, DecodeErrorCallback?])

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

getter/setter pair

destination → AudioDestinationNode

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

MDN Reference

no setter

dispatchEvent ↔ bool Function(Event)

Available on EventTarget, provided by the EventTarget$Typings extension

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

length → num

Available on OfflineAudioContext, provided by the OfflineAudioContext$Typings extension

MDN Reference

no setter

listener → AudioListener

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

MDN Reference

no setter

oncomplete ↔ dynamic Function(OfflineAudioCompletionEvent)?

Available on OfflineAudioContext, provided by the OfflineAudioContext$Typings extension

MDN Reference

getter/setter pair

onstatechange ↔ dynamic Function(Event)?

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

MDN Reference

getter/setter pair

removeEventListener → ({void Function<K$>(BaseAudioContextEventMap<K$> type, dynamic listener(K$), [Object? options]) $1, void Function(String type, Object listener, [Object? options]) $2})

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

Overload accessor: $1, $2

no setter

removeEventListener ↔ void Function(String, [Object?, Object?])

Available on EventTarget, provided by the EventTarget$Typings extension

getter/setter pair

removeEventListener → ({void Function<K$>(OfflineAudioContextEventMap<K$> type, dynamic listener(K$), [Object? options]) $1, void Function(String type, Object listener, [Object? options]) $2})

Available on OfflineAudioContext, provided by the OfflineAudioContext$Typings extension

Overload accessor: $1, $2

no setter

resume ↔ Future<void> Function()

Available on OfflineAudioContext, provided by the OfflineAudioContext$Typings extension

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

sampleRate → num

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

MDN Reference

no setter

startRendering ↔ Future<AudioBuffer> Function()

Available on OfflineAudioContext, provided by the OfflineAudioContext$Typings extension

getter/setter pair

state → AudioContextState

Available on BaseAudioContext, provided by the BaseAudioContext$Typings extension

MDN Reference

no setter

suspend ↔ Future<void> Function(num)

Available on OfflineAudioContext, provided by the OfflineAudioContext$Typings extension

getter/setter pair

Methods

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