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Windows.Media.SpeechRecognition namespace

Applies to Windows Phone only

Enables speech recognition for Windows Runtime apps.


The Windows.Media.SpeechRecognition namespace has these types of members:


The Windows.Media.SpeechRecognition namespace has these classes.

SpeechRecognitionCompilationResult The result of compiling the constraints set for a speech recognizer.
SpeechRecognitionGrammarFileConstraint A constraint for a speech recognizer based on a SGRS grammar file.
SpeechRecognitionListConstraint A constraint for a speech recognizer based on a list of words or phrases.
SpeechRecognitionQualityDegradingEventArgs Provides data for the SpeechRecognitionQualityDegradingEvent event.
SpeechRecognitionResult The result of a speech recognition session.
SpeechRecognitionSemanticInterpretation Represents the semantic properties of a recognized phrase in a Speech Recognition Grammar Specification (SRGS) grammar
SpeechRecognitionTopicConstraint A constraint for a speech recognizer based on a predefined grammar (dictation or web search).
SpeechRecognitionVoiceCommandDefinitionConstraint A constraint for a speech recognizer based on a Voice Command Definition (VCD) file.
SpeechRecognizer Enables speech recognition with either a default or a custom graphical user interface (GUI).
SpeechRecognizerStateChangedEventArgs Provides data for the SpeechRecognizer.StateChangedEvent event.
SpeechRecognizerTimeouts Used to configure the timeout settings of a SpeechRecognizer object.
SpeechRecognizerUIOptions Used to configure the graphical user interface (GUI) settings of a SpeechRecognizer object.
VoiceCommandManager A static class that enables installing command sets from a Voice Command Definition (VCD) file, and getting installed command sets.
VoiceCommandSet Enables operations on a specific installed command set.



The Windows.Media.SpeechRecognition namespace has these enumerations.

SpeechRecognitionAudioProblem Represents the type of audio problem that occurred.
SpeechRecognitionConfidence Represents the confidence level that describes how accurately a spoken phrase was matched to a phrase in an active constraint.
SpeechRecognitionConstraintProbability An enumeration that indicates the weighted value of a constraint for speech recognition
SpeechRecognitionConstraintType Indicates the constraint type.
SpeechRecognitionResultStatus The status of the result of a speech recognition session, or of compiling the constraints of a speech recognizer.
SpeechRecognitionScenario Indicates the predefined scenario type
SpeechRecognizerState An enumeration that contains all audio capture states.



The Windows.Media.SpeechRecognition namespace defines these interfaces.

ISpeechRecognitionConstraint Represents a constraint for a SpeechRecognizer.



Minimum supported client

None supported

Minimum supported server

None supported

Minimum supported phone

Windows Phone 8.1 [Windows Runtime apps only]


Windows::Media::SpeechRecognition [C++]



See also

Responding to speech interactions (HTML)
Responding to speech interactions (XAML)
Speech design guidelines (Windows Phone Store apps)



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