LVSpeechPort::StreamSetParameter

Sets a new value for a stream property.

Function

• int StreamSetParameter(int StreamParameter, unsigned int StreamParameterValue)

Parameters

StreamParameter

Stream parameter to change. See available Stream Properties.

StreamParameterValue

New stream parameter value.

Return Values

LV_SUCCESS

No errors; parameter changed correctly.

LV_INVALID_HPORT

The port is not valid (either CreateClient has not been called or DestroyClient has been called prior to this call).

LV_FAILURE

The operation failed because the port was shutting down.

LV_INVALID_PROPERTY

The specified parameter does not exist.

LV_EXCEPTION

An exception occured while processing the request.

Remarks

The streaming parameters set by this function are very important for the Engine to correctly determine when speech begins and ends, which in turn is important for getting accurate recognition. A common problem in speech applications is that the Engine may cut off the start or end of an utterance if these settings are incorrect.

See our recommended Engine settings for some ideas of how to alter these settings for different types of applications.

See Also

• Stream Properties
• LVSpeechPort::StreamGetParameter
• LVSpeechPort::StreamSetParameterToDefault
• LV_SRE_StreamSetParameter (C API)