www.pudn.com > SMV_Code.rar > lib_lpc.h

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/*=========================================================================*/ 
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/*===================================================================*/ 
/* PROTOTYPE FILE: lib_lpc.h                                         */ 
/*-------------------------------------------------------------------*/ 
/* PURPOSE :   Library for Linear Prediction Analysis.               */ 
/*===================================================================*/ 
 
/*----------------------------------------------------------------------------*/ 
/*------------------------------- FUNCTIONS ----------------------------------*/ 
/*----------------------------------------------------------------------------*/ 
 
void	LPC_init_lib         (void); 
 
#ifdef ENC_CMP 
void	LPC_analysis	     (INT16, FLOAT64 [], FLOAT64 [], FLOAT64 [],  
			      FLOAT64 [], FLOAT64 [], FLOAT64 *, FLOAT64 [], 
			      FLOAT64 [], INT16, INT16, FLOAT64 *, INT16); 
 
void	LPC_autocorrelation  (FLOAT64 [], INT16, FLOAT64 [], INT16); 
 
INT16   LPC_levinson_durbin  (INT16, FLOAT64 [], FLOAT64 [], FLOAT64 [], 
			      FLOAT64 *); 
 
FLOAT64 LPC_chebyshev	     (FLOAT64,    FLOAT64 [],  INT16); 
void	LPC_az_lsf 	     (FLOAT64 [], FLOAT64 [], INT16); 
#endif 
 
void	LPC_ptoa             (FLOAT64 [], FLOAT64 [], INT16); 
 
#ifdef ENC_CMP 
 
 
void	LPC_lsftop           (FLOAT64 [], FLOAT64 [], INT16); 
#endif 
 
void 	LPC_pred2refl        (FLOAT64 [], FLOAT64 [], INT16); 
 
#ifdef ENC_CMP 
void	LPC_adptive_interp   (FLOAT64 [], FLOAT64 [], FLOAT64 [], FLOAT64 **, 
			      INT16 *); 
#endif 
 
void	LPC_adptive_interp_dec   (FLOAT64 [],  FLOAT64 [], FLOAT64 **, INT16); 
 
void    LPC_interpolation     (FLOAT64 [], FLOAT64 [],  FLOAT64 [], FLOAT64 **,  
			       INT16, INT16); 
 
void	LPC_convsm	      (FLOAT64 [], INT16 *, FLOAT64); 
 
#ifdef ENC_CMP 
void	LPC_ImpulseResponse   (FLOAT64 [], FLOAT64 [], FLOAT64 [], 
			       FLOAT64 [], INT16); 
#endif 
 
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