lpc.h File Reference

Functions for LPC (Linear Prediction Coefficients) analysis. More...

#include "misc.h"

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Functions
void	_spx_autocorr (const spx_word16_t *x, spx_word16_t *ac, int lag, int n)
spx_word32_t	_spx_lpc (spx_coef_t *lpc, const spx_word16_t *ac, int p)

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Detailed Description

Functions for LPC (Linear Prediction Coefficients) analysis.

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Function Documentation

void _spx_autocorr	(	const spx_word16_t *	x,
		spx_word16_t *	ac,
		int	lag,
		int	n
	)

References ADD32, MULT16_16, and SHR32.

Referenced by nb_encode(), and sb_encode().

spx_word32_t _spx_lpc	(	spx_coef_t *	lpc,
		const spx_word16_t *	ac,
		int	p
	)

References ADD16, DIV32_16, EXTEND32, MAC16_16_Q13, MULT16_16, MULT16_16_Q13, NEG32, SHL32, SUB16, and SUB32.

Referenced by nb_encode(), and sb_encode().