VADConfiguration class
Compile-time / load-time configuration for a VAD instance. Sources pre-IDL: Swift VADTypes.swift:15 (energyThreshold, sampleRate, frameLength, enableAutoCalibration, calibrationMultiplier) Kotlin VADTypes.kt:26 (same five fields, defaults match Swift) Dart vad_configuration.dart:5 (same five fields) RN VADTypes.ts:12 (sampleRate, frameLength, energyThreshold; no calibration fields) Web VADTypes.ts — (no VADConfiguration; per-backend in WebSDK) C ABI rac_vad_types.h:63 (rac_vad_config_t) (model_id, preferred_framework, energy_threshold, sample_rate, frame_length, enable_auto_calibration, calibration_multiplier)
frame_length_ms is the canonical wire field — Swift/Kotlin/Dart/C use
seconds (float), but ms is more interoperable across protobuf consumers.
Generators must convert when binding to per-platform types.
- Available extensions
Constructors
- VADConfiguration({String? modelId, int? sampleRate, int? frameLengthMs, double? threshold, bool? enableAutoCalibration, double? calibrationMultiplier, InferenceFramework? preferredFramework, String? modelPath, int? windowSizeSamples, int? maxSpeechDurationMs})
-
factory
-
VADConfiguration.fromBuffer(List<
int> data, [ExtensionRegistry registry = $pb.ExtensionRegistry.EMPTY]) -
factory
- VADConfiguration.fromJson(String json, [ExtensionRegistry registry = $pb.ExtensionRegistry.EMPTY])
-
factory
Properties
- calibrationMultiplier ↔ double
-
Calibration multiplier (threshold = ambient noise * multiplier).
Present in Swift/Kotlin/Dart configs and rac_vad_config_t.
getter/setter pair
- enableAutoCalibration ↔ bool
-
When true, the VAD performs ambient-noise calibration and uses the
result as a multiplier on the threshold (see calibration_multiplier
in the C ABI). Defaults to false.
getter/setter pair
- frameLengthMs ↔ int
-
Frame length in milliseconds. Default 100 (Swift/Kotlin/Dart store
0.1 seconds; we canonicalize to ms on the wire).
getter/setter pair
- hashCode → int
-
Calculates a hash code based on the contents of the protobuf.
no setterinherited
- info_ → BuilderInfo
-
no setter
- isFrozen → bool
-
Returns
trueif this message is marked read-only. Otherwisefalse.no setterinherited - maxSpeechDurationMs ↔ int
-
Maximum continuous speech segment duration in milliseconds. 0 =
backend/default.
getter/setter pair
- modelId ↔ String
-
Optional model id; empty when using the built-in energy VAD.
C ABI: model_id (rac_vad_config_t::model_id, may be NULL).
getter/setter pair
- modelPath ↔ String
-
Optional model path for backend-specific VADs (e.g. Silero ONNX).
getter/setter pair
- preferredFramework ↔ InferenceFramework
-
Preferred framework for VAD. Absent = auto.
getter/setter pair
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- sampleRate ↔ int
-
PCM sample rate in Hz. Default 16000 (RAC_VAD_DEFAULT_SAMPLE_RATE).
getter/setter pair
- threshold ↔ double
-
Energy threshold in
0.0, 1.0for voice detection. Recommended range 0.01–0.05; default 0.015 across SDKs.getter/setter pair - unknownFields → UnknownFieldSet
-
no setterinherited
- windowSizeSamples ↔ int
-
Window size in samples for frame-based neural VAD backends. 0 =
backend/default.
getter/setter pair
Methods
-
addExtension(
Extension extension, Object? value) → void -
Adds an extension field value to a repeated field.
inherited
-
check(
) → void -
Throws a StateError if the message has required fields without a value.
inherited
-
clear(
) → void -
Clears all data that was set in this message.
inherited
-
clearCalibrationMultiplier(
) → void -
clearEnableAutoCalibration(
) → void -
clearExtension(
Extension extension) → void -
Clears an extension field and also removes the extension.
inherited
-
clearField(
int tagNumber) → void -
Clears the contents of a given field.
inherited
-
clearFrameLengthMs(
) → void -
clearMaxSpeechDurationMs(
) → void -
clearModelId(
) → void -
clearModelPath(
) → void -
clearPreferredFramework(
) → void -
clearSampleRate(
) → void -
clearThreshold(
) → void -
clearWindowSizeSamples(
) → void -
clone(
) → VADConfiguration - Creates a deep copy of the fields in this message.
-
copyWith(
void updates(VADConfiguration)) → VADConfiguration -
Apply
updatesto a copy of this message. -
createEmptyInstance(
) → VADConfiguration - Creates an empty instance of the same message type as this.
-
deepCopy(
) → T -
Available on T, provided by the GeneratedMessageGenericExtensions extension
Returns a writable deep copy of this message. -
extensionsAreInitialized(
) → bool -
inherited
-
freeze(
) → GeneratedMessage -
Make this message read-only.
inherited
-
getDefaultForField(
int tagNumber) → dynamic -
Returns the default value for the given field.
inherited
-
getExtension(
Extension extension) → dynamic -
Returns the value of
extension.inherited -
getField(
int tagNumber) → dynamic -
Returns the value of the field associated with
tagNumber, or the default value if it is not set.inherited -
getFieldOrNull(
int tagNumber) → dynamic -
Returns the value of a field, ignoring any defaults.
inherited
-
getTagNumber(
String fieldName) → int? -
inherited
-
hasCalibrationMultiplier(
) → bool -
hasEnableAutoCalibration(
) → bool -
hasExtension(
Extension extension) → bool -
Returns
trueif a value ofextensionis present.inherited -
hasField(
int tagNumber) → bool -
Whether this message has a field associated with
tagNumber.inherited -
hasFrameLengthMs(
) → bool -
hasMaxSpeechDurationMs(
) → bool -
hasModelId(
) → bool -
hasModelPath(
) → bool -
hasPreferredFramework(
) → bool -
hasRequiredFields(
) → bool -
Whether the message has required fields.
inherited
-
hasSampleRate(
) → bool -
hasThreshold(
) → bool -
hasWindowSizeSamples(
) → bool -
isInitialized(
) → bool -
Whether all required fields in the message and embedded messages are set.
inherited
-
mergeFromBuffer(
List< int> input, [ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY]) → void -
Merges serialized protocol buffer data into this message.
inherited
-
mergeFromCodedBufferReader(
CodedBufferReader input, [ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY]) → void -
Same as
mergeFromBuffer, but takes aCodedBufferReaderinput.inherited -
mergeFromJson(
String data, [ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY]) → void -
Merges field values from
data, a JSON object, encoded as described byGeneratedMessage.writeToJson.inherited -
mergeFromJsonMap(
Map< String, dynamic> json, [ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY]) → void -
Merges field values from a JSON object represented as a Dart map.
inherited
-
mergeFromMessage(
GeneratedMessage other) → void -
Merges the contents of the
otherinto this message.inherited -
mergeFromProto3Json(
Object? json, {TypeRegistry typeRegistry = const TypeRegistry.empty(), bool ignoreUnknownFields = false, bool supportNamesWithUnderscores = true, bool permissiveEnums = false}) → void -
Merges field values from
json, a JSON object using proto3 encoding.inherited -
mergeUnknownFields(
UnknownFieldSet unknownFieldSet) → void -
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
rebuild(
void updates(T)) → T -
Available on T, provided by the GeneratedMessageGenericExtensions extension
Applyupdatesto a copy of this message. -
setExtension(
Extension extension, Object value) → void -
Sets the value of a non-repeated extension field to
value.inherited -
setField(
int tagNumber, Object value) → void -
Sets the value of a field by its
tagNumber.inherited -
toBuilder(
) → GeneratedMessage -
Creates a writable, shallow copy of this message.
inherited
-
toDebugString(
) → String -
Returns a String representation of this message.
inherited
-
toProto3Json(
{TypeRegistry typeRegistry = const TypeRegistry.empty()}) → Object? -
Returns an Object representing Proto3 JSON serialization of
this.inherited -
toString(
) → String -
Returns a String representation of this message.
inherited
-
validate(
) → void -
Available on VADConfiguration, provided by the VADConfigurationValidate extension
-
writeToBuffer(
) → Uint8List -
Serialize the message as the protobuf binary format.
inherited
-
writeToCodedBufferWriter(
CodedBufferWriter output) → void -
Same as
writeToBuffer, but serializes to the givenCodedBufferWriter.inherited -
writeToJson(
) → String -
Returns a JSON string that encodes this message.
inherited
-
writeToJsonMap(
) → Map< String, dynamic> -
Returns the JSON encoding of this message as a Dart Map.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited