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MASRSRecognitionHwDeviceObserver Class Reference

class MASRSRecognitionHwDeviceObserver

Observer for recognition HW device

asrsrecognitionhwdevice.lib

Since: 2.8

Public Member Functions
void	MarhdoEouDetected ( TInt )
void	MarhdoFeatureVector (const TDesC8 &, TInt32 , TInt32 )
void	MarhdoInitRecognizerBEComplete ( TInt )
void	MarhdoInitRecognizerFEComplete ( TInt )
void	MarhdoInitializationComplete ( TInt )
void	MarhdoRecognitionComplete ( TInt )
void	MarhdoRequestSpeechData ()

Member Functions Documentation

MarhdoEouDetected(TInt)

void

MarhdoEouDetected

(

TInt

aError

)

[pure virtual]

Called by the hardware device when end-of-utterance is detected by the acoustic frontend. This method must be called before MarhdoRecognitionComplete() .

Since: 2.8

Parameters

TInt aError

Recognition result code. KErrNone if successful, otherwise KErrTooLong, KErrTooShort, KErrAsrSpeechTooEarly, KErrNoSpeech

MarhdoFeatureVector(const TDesC8 &, TInt32, TInt32)

void	MarhdoFeatureVector	(	const TDesC8 &	aFV,
			TInt32	aSNR,
			TInt32	aPosition
		)	[pure virtual]

Called by the hardware device when a feature vector is extracted by acoustic frontend.

Since: 2.8

Parameters

const TDesC8 & aFV	A buffer containing a feature vector.
TInt32 aSNR	Signal-to-noise ratio.
TInt32 aPosition	Indicates whether this is the first, subsequent or last feature vector in a series.

MarhdoInitRecognizerBEComplete(TInt)

void

MarhdoInitRecognizerBEComplete

(

TInt

aError

)

[pure virtual]

Called by the hardware device when backend initialization is completed.

Since: 2.8

Parameters

TInt aError

Initialization result code. KErrNone if successful otherwise a system-wide error code.

MarhdoInitRecognizerFEComplete(TInt)

void

MarhdoInitRecognizerFEComplete

(

TInt

aError

)

[pure virtual]

Called by the hardware device when the InitializeL() method has completed.

Since: 2.8

Parameters

TInt aError

Initialization result code. KErrNone if successful otherwise a system-wide error code.

MarhdoInitializationComplete(TInt)

void

MarhdoInitializationComplete

(

TInt

aError

)

[pure virtual]

Called by the hardware device when the InitializeL() method has completed.

Since: 2.8

Parameters

TInt aError

Initialization result code. KErrNone if successful otherwise a system-wide error code.

MarhdoRecognitionComplete(TInt)

void

MarhdoRecognitionComplete

(

TInt

aError

)

[pure virtual]

Called by the hardware device when recognition result is available.

Since: 2.8

Parameters

TInt aError

Recognition result code. KErrNone if successful. KErrRejected if the recognition result is rejected, otherwise a system-wide error code

MarhdoRequestSpeechData()

void

MarhdoRequestSpeechData

(

)

[pure virtual]

Called by the hardware device to request for utterance data. The response to the request is sent in SendSpeechData().

Since: 2.8