SpeechRecoEvents (SAPI 5.3)

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Microsoft Speech API 5.3

SpeechRecoEvents Enum

The SpeechRecoEvents enumeration lists speech recognition (SR) events.

Used in ISpeechRecoContext.VoicePurgeEvent and ISpeechRecoContext.EventInterests.

Definition

  Enum SpeechRecoEvents
    SREStreamEnd = 1
    SRESoundStart = 2
    SRESoundEnd = 4
    SREPhraseStart = 8
    SRERecognition = 16
    SREHypothesis = 32
    SREBookmark = 64
    SREPropertyNumChange = 128
    SREPropertyStringChange = 256
    SREFalseRecognition = 512
    SREInterference = 1024
    SRERequestUI = 2048
    SREStateChange = 4096
    SREAdaptation = 8192
    SREStreamStart = 16384
    SRERecoOtherContext = 32768
    SREAudioLevel = 65536
    SREPrivate = 262144
    SREAllEvents = 393215
End Enum

Elements

  • SREStreamEnd
    SR engine has reached the end of an input stream.
  • SRESoundStart
    SR engine has detected the start of non-trivial audio data.
  • SRESoundEnd
    SR engine has detected the end of non-trivial audio data.
  • SREPhraseStart
    SR engine has detected the start of a recognizable phrase.
  • SRERecognition
    SR engine's best hypothesis for the audio data.
  • SREHypothesis
    SR engine's interim hypothesis for the result of the audio data.
  • SREBookmark
    SR engine has reached the specified point in the audio stream.
  • SREPropertyNumChange
    LPARAM points to a string WPARAM that is the attribute value.
  • SREPropertyStringChange
    LPARAM pointer to a buffer. Two concatenated null-terminated strings.
  • SREFalseRecognition
    Apparent speech with no valid recognition.
  • SREInterference
    LPARAM is any combination of SpeechInterference flags.
  • SRERequestUI
    LPARAM is string.
  • SREStateChange
    WPARAM contains new recognition state.
  • SREAdaptation
    The adaptation buffer is now ready to be accepted.
  • SREStreamStart
    SR engine has reached the start of an input stream.
  • SRERecoOtherContext
    Phrase finished and recognized but for other context.
  • SREAudioLevel
    Input audio volume level
  • SREPrivate
    Private engine-specific event.
  • SREAllEvents
    All events listed above.