HighPassFilter

Performs high-pass filtering.

Syntax

IppStatus ippsHighPassFilter_RTA_32f(Ipp32f* pSrc, Ipp32f* pDst, int len, int hpfOrder, IppPCMFrequency frequency, Ipp32f* pMem);

pSrc	Pointer to the source vector [len].
pDst	Pointer to the destination vector [len].
len	Number of elements in the source and destination vectors.
hpfOrder	Filter order, possible values: 4, 5.
frequency	Sampling frequency, possible values are:
	IPP_PCM_FREQ_8000 8000 Hz,
	IPP_PCM_FREQ_16000 16000 Hz,
	IPP_PCM_FREQ_22050 22050 Hz,
	IPP_PCM_FREQ_32000 32000 Hz.
pMem	Pointer to the memory allocated for the filter [hpfOrder].

The function ippsHighPassFilter_RTA is declared in the ippsc.h file.

This function performs high-pass filtering and may be applied to the input or synthesized audio signal.

ippStsNoErr	Indicates no error.
IppStsNullPtrErr	Indicates an error when one of the specified pointers is NULL.
IppStsSizeErr	Indicates an error when len is less than or equal to 0.
IppStsRangeErr	Indicates an error when hpfOrder is not equal to 4 or 5; or frequency is not equal to the possible values.