psy_mel_filterbank Struct Reference

#include <auditory.h>

Data Fields
int32_t	log_mult
	Out, QX.Y scale for log, log10, or dB format.
int32_t	scale_log2
	Out, Scale as log2 Q16.16 to apply to Mel energies.
int32_t	samplerate
	In, Hz Q0.
int16_t	start_freq
	In, Hz Q0.
int16_t	end_freq
	In, Hz Q0.
int16_t *	scratch_data1
	Scratch, At least half_fft_bins size.
int16_t *	scratch_data2
	Scratch, Packed triangles data.
int16_t *	data
	Out, Packed triangles data.
int	scratch_length1
	In, Length of first scratch.
int	scratch_length2
	In, Length of second scratch.
int	fft_bins
	In, Number of FFT bins.
int	half_fft_bins
	In, fft_bins / 2 + 1.
int	mel_bins
	In, Number of Mel frequency bins.
int	data_length
	Out, Number of int16_t words in triangles data.
enum psy_mel_log_scale	mel_log_scale
	In, LOG, LOG10 or DB to select Mel format.
bool	slaney_normalize
	In, Apply Slaney type normalization for filterbank if true.

Field Documentation

data

int16_t* psy_mel_filterbank::data

Out, Packed triangles data.

data_length

int psy_mel_filterbank::data_length

Out, Number of int16_t words in triangles data.

end_freq

int16_t psy_mel_filterbank::end_freq

In, Hz Q0.

fft_bins

int psy_mel_filterbank::fft_bins

In, Number of FFT bins.

half_fft_bins

int psy_mel_filterbank::half_fft_bins

In, fft_bins / 2 + 1.

log_mult

int32_t psy_mel_filterbank::log_mult

Out, QX.Y scale for log, log10, or dB format.

mel_bins

int psy_mel_filterbank::mel_bins

In, Number of Mel frequency bins.

mel_log_scale

enum psy_mel_log_scale psy_mel_filterbank::mel_log_scale

In, LOG, LOG10 or DB to select Mel format.

samplerate

int32_t psy_mel_filterbank::samplerate

In, Hz Q0.

scale_log2

int32_t psy_mel_filterbank::scale_log2

Out, Scale as log2 Q16.16 to apply to Mel energies.

scratch_data1

int16_t* psy_mel_filterbank::scratch_data1

Scratch, At least half_fft_bins size.

scratch_data2

int16_t* psy_mel_filterbank::scratch_data2

Scratch, Packed triangles data.

scratch_length1

int psy_mel_filterbank::scratch_length1

In, Length of first scratch.

scratch_length2

int psy_mel_filterbank::scratch_length2

In, Length of second scratch.

slaney_normalize

bool psy_mel_filterbank::slaney_normalize

In, Apply Slaney type normalization for filterbank if true.

start_freq

int16_t psy_mel_filterbank::start_freq

In, Hz Q0.

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The documentation for this struct was generated from the following file:

• /home/lrg/work/sof-dox-work/src/include/sof/math/auditory.h