API reference

API reference

Select your platform

No SDKs available

No versions available

AudioClipAudioSource

NativeWebSocket

NativeWebSocket

WaitForBackgroundThread

MainThreadAwaiter

WebSocketException

WebSocketFactory

WebSocketHelpers

WebSocketInvalidArgumentException

WebSocketInvalidStateException

WebSocketUnexpectedException

INLPRequestOptions

INLPRequestResponseDecoder

INLPRequestResults

ITranscriptionRequestOptions

ITranscriptionRequestResults

IVoiceRequestOptions

IVoiceRequestResults

NLPRequestEvents

NLPRequestResponseEvent

NLPRequestResponseValidatorEvent

LayerDecoderBase

LayerIIDecoderBase

LayerIIIDecoder

MpegStreamReader

RiffHeaderFrame

MpegFrameDecoder

TelemetryUtilities

TelemetryUtilities

EditorTelemetry

ITelemetryWriter

PerformanceTracing

PerformanceTracing

UnityProfilerTraceProvider

RuntimeTelemetry

TelemetryConsentManager

TranscriptionRequest

TranscriptionRequestEvent

TranscriptionRequestEvents

UserTranscriptionRequestEvent

VoiceHubConstants

VoiceRequestEvents

SettingsWindowPage

WitConfigWindowPage

ArrayNodeReference

ButtonAttribute

DropDownAttribute

HiddenTextAttribute

HideIfAttribute

HideWhenSetAttribute

ObjectTypeAttribute

ShowIfAttribute

TooltipBoxAttribute

WitConfigurationAssetRefreshAttribute

AudioDurationTracker

BaseSpeechService

CallbackHandlers

CallbackHandlers

ConfidenceRange

FormattedValueEvents

OutOfScopeUtteranceHandler

SimpleIntentHandler

SimpleIntentHandlerEditor

SimpleStringEntityHandler

SimpleStringEntityHandlerEditor

ValuePathMatcher

ValuePathMatcherPropertyDrawer

WitIntentMatcher

WitIntentMatcherEditor

WitResponseHandler

WitResponseMatcher

WitUtteranceMatcher

ComponentExtensions

ComponentExtensions

ComponentCopyData

VersionTagDropdownAttribute

VersionDropdownDrawer

WitDictationRuntimeConfiguration

WitEndpointConfig

WitRequestOptions

WitRuntimeConfiguration

CoroutineUtility

CoroutineUtility

CoroutinePerformer

AudioBufferConfiguration

AudioBufferPrefabProvider

WitConfigurationApplicationTab

WitConfigurationEditorTab

WitConfigurationEntitiesTab

WitConfigurationIntentsTab

WitConfigurationTraitsTab

WitConfigurationVoicesTab

WitConfiguration

WitConfigurationAssetData

WitConfigurationCache

WitConfigurationCacheKey

WitConfigurationUtility

DynamicEntityDataProvider

DynamicEntityKeywordRegistry

DynamicEntityProvider

RegisteredDynamicEntityKeyword

WitDynamicEntities

WitDynamicEntitiesData

WitDynamicEntity

WitEntityDataBase

WitEntityFloatData

WitEntityIntData

WitSimpleDynamicEntity

IAudioBufferProvider

WitContextMapInfo

WitEntityKeywordInfo

WitEntityRoleInfo

WitIntentEntityInfo

WitTraitValueInfo

WitVersionTagInfo

SimulatedResponse

SimulatedResponseMessage

ValueReferences

ValueReferences

IStringReference

StringReference

WitDataCreation

DictationSession

DictationService

DictationEvents

IDictationService

MultiRequestTranscription

ButtonAttributeDrawer

DynamicRangeAttributeDrawer

HiddenTextAttributeDrawer

StringReferenceDrawer

TooltipBoxDrawer

EditorUtilities

EditorUtilities

SerializedPropertyExtensions

EnumerableExtensions

IExportParserPlugin

ITelemetryEventsProvider

IVoiceActivationHandler

IVoiceEventProvider

IWitRequestConfiguration

IWitRequestEndpointInfo

IWitRuntimeConfigProvider

IWitRuntimeConfigSetter

CustomTranscriptionProvider

IAudioEventProvider

IAudioInputEvents

IAudioInputSource

IAudioUploadHandler

IAudioVariableSampleRate

IDataUploadHandler

IDynamicEntitiesProvider

IPlatformIntegrationOverride

ITranscriptionEvent

ITranscriptionEventProvider

ITranscriptionProvider

IVoiceServiceRequestProvider

IWitConfigurationProvider

IWitConfigurationSetter

IWitInspectorTools

BaseAudioClipInput

IAudioLevelRangeProvider

VoiceLipSyncMic

MatchIntentRegistry

ObjectNodeReference

RegisteredMatchIntent

ServiceReferences

ServiceReferences

AudioInputServiceReference

CombinedAudioEventReference

DictationServiceAudioEventReference

VoiceServiceAudioEventReference

ISpeechEventProvider

VoiceSpeechEvents

TTSDiskCacheSettings

TTSEventContainer

TTSPhonemeEvent

TTSVoiceSettings

ActionEventHandler

EmoteEventHandler

TTSDownloadEvents

TTSServiceEvents

TTSStreamEvents

TTSWebRequestEvents

BaseTTSRuntimeCache

TTSEventAnimator

TTSEventTrigger

TTSRuntimeLRUCache

TTSRuntimePlaybackCache

TTSWitRequestSettings

TTSWitVoiceSettings

ISpeakerTextPostprocessor

ISpeakerTextPreprocessor

ITTSDiskCacheHandler

ITTSEventPlayer

ITTSRuntimeCacheHandler

ITTSVoiceProvider

BaseTextureFlipLipSync

BaseTextureFlipLipSync

VisemeTextureData

BaseVisemeBlendShapeLipSync

BaseVisemeBlendShapeLipSync

VisemeBlendShapeData

VisemeBlendShapeWeight

ILipsyncAnimator

IVisemeAnimatorProvider

VisemeBlendShapeLipSync

VisemeChangedEvent

VisemeLerpEvent

VisemeLipSyncAnimator

VisemeTextureFlipLipSync

TTSPreloadPhraseData

TTSPreloadSettings

TTSPreloadSettingsInspector

TTSPreloadUtility

TTSPreloadVoiceData

TTSStreamToggle

TTSEditorUtilities

TTSServiceInspector

TTSSpeakerInspector

TTSWitInspector

TTSSpeakerErrorLabel

TTSSpeakerObserver

TTSSpeakerStatusLabel

ITTSPhraseProvider

TTSSpeakerAutoLoader

TTSSpeakerBodyAnimator

TTSSpeakerClipEvent

TTSSpeakerClipEvents

TTSSpeakerClipMessageEvent

TTSSpeakerEvents

TTSSpeechSplitter

TTSWitVoiceSettingsDrawer

UnityEventExtensions

UnityObjectExtensions

AssetDatabaseUtility

DictationServiceReference

DynamicRangeAttribute

EventSystemInstantiator

FloatToStringEvent

GameObjectSearchUtility

ReflectionUtils

StringToStringEvent

VoiceServiceReference

WitRuntimeStyles

ValidatePartialIntent

WitAppInfoUtility

DefaultTokenValidatorProvider

ITokenValidationProvider

WitConduitParameterProvider

WitConfigurationEditorUI

WitEditorConstants

WitExportRetriever

WitRequestFactory

WitRequestSettings

WitResponseReference

WitResultUtilities

WitRuntimeRequestConfiguration

WrapHttpWebRequest

ZipArchiveExtensions

AppVoiceExperience

IVCBindingEvents

VoiceSDKBinding

VoiceSDKConfigBinding

VoiceSDKImplRequest

VoiceSDKListenerBinding

VoiceSDKDataCreation

AppVoiceExperienceWitConfigurationEditor

IPlatformVoiceService

TTSServiceLogging

ObjectVoiceExperience

HierarchySimplifier

HierarchySimplifierInspector

InspectorHelper

VoiceSDKVersion

VoiceSDKConstants

UnderstandingViewerWindow

VoiceApplicationDetailProvider

VoiceSDKTokenValidatorProvider

VoiceActivationButton

VoiceTranscriptionLabel

MicPermissionsManager

JSONParseException Class

Extends Exception

Member Functions

JSONParseException

( string message )

Did you find this page helpful?

Build with Meta

Social Technologies

About us

Virtual reality / Meta Horizon

Meta Horizon Creator Program

Discover

Why Meta Quest?

What is mixed reality?

Platforms and tools

2D apps for Meta Horizon OS

Success stories

Support and legal

Developer policies

Build with Meta

Social Technologies

About us

Virtual reality / Meta Horizon

Meta Horizon Creator Program

Discover

Why Meta Quest?

What is mixed reality?

Platforms and tools

2D apps for Meta Horizon OS

Success stories

Support and legal

Developer policies

Build with Meta

Social Technologies

About us

Virtual reality / Meta Horizon

Meta Horizon Creator Program

Discover

Why Meta Quest?

What is mixed reality?

Platforms and tools

2D apps for Meta Horizon OS

Success stories

Support and legal

Developer policies

English (US)

© 2026 Meta