SpeechRecognitionConstraintType SpeechRecognitionConstraintType SpeechRecognitionConstraintType SpeechRecognitionConstraintType Enum

Definition

public : enum class SpeechRecognitionConstraintTypepublic enum SpeechRecognitionConstraintTypePublic Enum SpeechRecognitionConstraintType// You can use this enum in JavaScript.

Attributes

ContractVersionAttribute

Device family	Windows 10 (introduced v10.0.10240.0)
API contract	Windows.Foundation.UniversalApiContract (introduced v1)

Fields

Grammar Grammar Grammar Grammar	A constraint based on a Speech Recognition Grammar Specification (SRGS) grammar file. See SpeechRecognitionGrammarFileConstraint.
List List List List	A constraint based on a list of words or phrases. See SpeechRecognitionListConstraint.
Topic Topic Topic Topic	A constraint based on a dictation topic. See SpeechRecognitionTopicConstraint.
VoiceCommandDefinition VoiceCommandDefinition VoiceCommandDefinition VoiceCommandDefinition	A constraint based on a Voice Command Definition (VCD) file. See SpeechRecognitionVoiceCommandDefinitionConstraint.

Remarks

Constraints, or grammars, define the spoken words and phrases that can be matched by the speech recognizer.

You can specify one of the pre-defined, web-service grammars (see SpeechRecognitionTopicConstraint ) or you can create your own custom grammar (see SpeechRecognitionGrammarFileConstraint, SpeechRecognitionListConstraint, and SpeechRecognitionVoiceCommandDefinitionConstraint ) that is installed with your app.

To use web-service constraints, speech input and dictation support must be enabled in Settings by turning on the "Get to know me" option in the Settings -> Privacy -> Speech, inking, and typing page. See "Recognize speech input" in Speech recognition.

See Also

• Speech interactions
• Speech design guidelines
• Speech recognition and speech synthesis sample