lpc_analysis.c File Reference

#include "lpc_analysis.h"
#include "settings.h"
#include "codec.h"
#include "entropy_coding.h"
#include <math.h>
#include <string.h>

Macros
#define	LEVINSON_EPS   1.0e-10

Functions
double	WebRtcIsac_LevDurb (double *a, double *k, double *r, size_t order)
void	WebRtcIsac_GetVars (const double *input, const int16_t *pitchGains_Q12, double *oldEnergy, double *varscale)
void	WebRtcIsac_GetVarsUB (const double *input, double *oldEnergy, double *varscale)
void	WebRtcIsac_GetLpcCoefLb (double *inLo, double *inHi, MaskFiltstr *maskdata, double signal_noise_ratio, const int16_t *pitchGains_Q12, double *lo_coeff, double *hi_coeff)
void	WebRtcIsac_GetLpcCoefUb (double *inSignal, MaskFiltstr *maskdata, double *lpCoeff, double corrMat[][UB_LPC_ORDER+1], double *varscale, int16_t bandwidth)
void	WebRtcIsac_GetLpcGain (double signal_noise_ratio, const double *filtCoeffVecs, int numVecs, double *gain, double corrMat[][UB_LPC_ORDER+1], const double *varscale)

Macro Definition Documentation

LEVINSON_EPS

#define LEVINSON_EPS   1.0e-10

Function Documentation

WebRtcIsac_GetLpcCoefLb()

void WebRtcIsac_GetLpcCoefLb	(	double *	inLo,
		double *	inHi,
		MaskFiltstr *	maskdata,
		double	signal_noise_ratio,
		const int16_t *	pitchGains_Q12,
		double *	lo_coeff,
		double *	hi_coeff
	)

WebRtcIsac_GetLpcCoefUb()

void WebRtcIsac_GetLpcCoefUb	(	double *	inSignal,
		MaskFiltstr *	maskdata,
		double *	lpCoeff,
		double	corrMat[][UB_LPC_ORDER+1],
		double *	varscale,
		int16_t	bandwidth
	)

WebRtcIsac_GetLpcGain()

void WebRtcIsac_GetLpcGain	(	double	signal_noise_ratio,
		const double *	filtCoeffVecs,
		int	numVecs,
		double *	gain,
		double	corrMat[][UB_LPC_ORDER+1],
		const double *	varscale
	)

WebRtcIsac_GetVars()

void WebRtcIsac_GetVars	(	const double *	input,
		const int16_t *	pitchGains_Q12,
		double *	oldEnergy,
		double *	varscale
	)

WebRtcIsac_GetVarsUB()

void WebRtcIsac_GetVarsUB	(	const double *	input,
		double *	oldEnergy,
		double *	varscale
	)

WebRtcIsac_LevDurb()

double WebRtcIsac_LevDurb	(	double *	a,
		double *	k,
		double *	r,
		size_t	order
	)