COM Objects > SoundRecognizer object > Methods > SoundRecognizer.StartOnMemory method

Remarks

Starts recognition of a sound file stored inside a memory buffer.

For further details about the use of the sound recognizer see the SoundRecognizer object section.

For details about sound recognition refer to the How to recognize music and obtain related information tutorial.

Syntax

[Visual Basic]

control.SoundRecognizer.StartOnMemory (

pBuffer as Variant,

nBufferLength as Long,

bWaitCompletion as enumBoolean,

nUniqueId as Long

) as enumErrorCodes

[C++]

short control.SoundRecognizer.StartOnMemory (

const VARIANT FAR& pBuffer,

long nBufferLength,

short bWaitCompletion,

long *nUniqueId

);

Parameter

Description

pBuffer

Input buffer containing the file to recognize.

nBufferLength

Length of the input buffer expressed in bytes.

bWaitCompletion

Boolean value indicating if the recognizer should wait for completion before returning to the caller.

Supported values are the following:

Value	Meaning
BOOL_FALSE	The recognizer will not wait for completion before returning to the caller and results will be available when the SoundRecognizerDone event will be raised
BOOL_TRUE	The recognizer will wait for completion before returning to the caller and results will be immediately available

nUniqueId

Reference that, on return from the method call, will contain the unique identifier of the recognition session: in case the bWaitCompletion parameter should be set to BOOL_TRUE, this unique identifier could be immediately used in order to invoke further methods that will give access to obtained results:

- SoundRecognizer.ResultsCountGet to obtain the total number of music results

- SoundRecognizer.ResultInfoGet to obtain a specific information related to the given music result

- SoundRecognizer.ResultGenresCountGet to obtain the number of genres related to the given music result

- SoundRecognizer.ResultGenreGet to obtain a specific genre related to the given music result

- SoundRecognizer.ResultArtistsCountGet to obtain the number of artists related to the given music result

- SoundRecognizer.ResultArtistInfoGet to obtain the information about the given artist

- SoundRecognizer.ResultArtistRolesCountGet to obtain the number of roles related to the given artist

- SoundRecognizer.ResultArtistRoleInfoGet to obtain information about the given role

- SoundRecognizer.ResultsDelete to clear the given recognition session from memory

Return value

Value	Meaning

Negative value	An error occurred, check the LastError property value in order to get the error code
enumErrorCodes.ERR_NOERROR (0)	The method call was successful