arm_mfcc_instance_q31 Struct Reference

Instance structure for the Q31 MFCC function. More...

Data Fields
const q31_t *	dctCoefs
const q31_t *	filterCoefs
const q31_t *	windowCoefs
const uint32_t *	filterPos
const uint32_t *	filterLengths
uint32_t	fftLen
uint32_t	nbMelFilters
uint32_t	nbDctOutputs

Description

Instance structure for the Q31 MFCC function.

Field Documentation

dctCoefs

const q31_t* dctCoefs

Internal DCT coefficients

fftLen

uint32_t fftLen

FFT length

filterCoefs

const q31_t* filterCoefs

Internal Mel filter coefficients

filterLengths

const uint32_t* filterLengths

Internal Mel filter lengths

filterPos

const uint32_t* filterPos

Internal Mel filter positions in spectrum

nbDctOutputs

uint32_t nbDctOutputs

Number of DCT outputs

nbMelFilters

uint32_t nbMelFilters

Number of Mel filters

windowCoefs

const q31_t* windowCoefs

Windowing coefficients