#ifndef _LPC_h_
#define _LPC_h_
/* David Weenink, 20011122 */

#ifndef _Matrix_h_
	#include "Matrix.h"
#endif
#ifndef _Graphics_h_
	#include "Graphics.h"
#endif
#include "LPC_utilities.h"

#include "LPC_def.h"
#define LPC_methods Sampled_methods
oo_CLASS_CREATE (LPC, Sampled)

/*
	From Sampled:
	xmin, xmax : range of time (s)
	x1 : position of first frame (s)
	dx : step size (s)
	nx : number of frames
*/	

int LPC_init (LPC me, double tmin, double tmax, long nt, double dt, double t1,
	int predictionOrder, double samplingInterval);

Any LPC_create (double tmin, double tmax, long nt, double dt, double t1,
	int predictionOrder, double samplingInterval);

void LPC_drawGain (LPC me, Graphics g, double t1, double t2,
	double gmin, double gmax, int garnish);
	
void LPC_drawPoles (LPC me, Graphics g, double time, int garnish);

Matrix LPC_to_Matrix (LPC me);

/******************* Frames ************************************************/

int LPC_Frame_init (LPC_Frame me, int nCoefficients);

#endif /* _LPC_h_ */
