Hann shaped low pass filter for resampling. More...

Inheritance diagram for MHAFilter::resampling_filter_t:

Public Member Functions
	resampling_filter_t (unsigned int fftlen, unsigned int irslen, unsigned int channels, unsigned int Nup, unsigned int Ndown, double fCutOff)
	Constructor. More...

Public Member Functions inherited from MHAFilter::fftfilter_t
	fftfilter_t (unsigned int fragsize, unsigned int channels, unsigned int fftlen)
	Constructor. More...

	~fftfilter_t ()

void	update_coeffs (const mha_wave_t *pwIRS)
	Update the set of coefficients. More...

void	filter (const mha_wave_t pwIn, mha_wave_t ppwOut, const mha_wave_t pwIRS)
	Apply filter with changing coefficients to a waveform fragment. More...

void	filter (const mha_wave_t pwIn, mha_wave_t *ppwOut)
	Apply filter to waveform fragment, without changing the coefficients. More...

void	filter (const mha_wave_t pwIn, mha_wave_t ppwOut, const mha_spec_t psWeights)
	Apply filter with changing coefficients to a waveform fragment. More...

Static Public Member Functions
static unsigned int	fragsize_validator (unsigned int fftlen, unsigned int irslen)

Detailed Description

Hann shaped low pass filter for resampling.

This class uses FFT filter at upsampled rate.

Constructor & Destructor Documentation

MHAFilter::resampling_filter_t::resampling_filter_t	(	unsigned int	fftlen,
		unsigned int	irslen,
		unsigned int	channels,
		unsigned int	Nup,
		unsigned int	Ndown,
		double	fCutOff
	)

Constructor.

Parameters

fftlen	FFT length.
irslen	Length of filter.
channels	Number of channels to be filtered.
Nup	Upsampling ratio.
Ndown	Downsampling ratio.
fCutOff	Cut off frequency (relative to lower Nyquist Frequency)

unsigned int MHAFilter::resampling_filter_t::fragsize_validator	(	unsigned int	fftlen,
		unsigned int	irslen
	)

static

unsigned int MHAFilter::resampling_filter_t::fragsize

private

The documentation for this class was generated from the following files: