Microsoft Speech Platform

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SPRECOEVENTFLAGS

SPRECOEVENTFLAGS lists the states of the SR engine. When a recognition event is raised, the wParam of SPEVENT or SPEVENTEX will contain a value from SPRECOEVENTFLAGS indicating the state of the SR engine.

typedef enum SPRECOEVENTFLAGS
{
    SPREF_AutoPause,
    SPREF_Emulated,
    SPREF_SMLTimeout,
    SPREF_ExtendableParse,

    SPREF_Hypothesis,
    SPREF_FalseRecognition
} SPRECOECOEVENTFLAGS;

Elements

SPREF_AutoPause

Indicates that the engine is in the auto-paused state.

SPREF_Emulated

Indicates that the engine is in emulation.

SPREF_SMLTimeout

Indicates there was a timeout generating the SML and hence no SML will be returned.

SPREF_ExtendableParse

The user said something that was a valid path through the grammar, but it is possible they could be about to say something else. For example, if the grammar contains "play the ace" and "play the ace of spades" and the user says "play the ace", this flag is set.

SPREF_Hypothesis

Indicates the result is a partial recognition. For example, if the grammar contains "play the ace of spades" and the user says "play the ace", then it is a hypothesis.

SPREF_FalseRecognition

Indicates the recognizer rejected the recognition because of low confidence score.