www.pudn.com > lpc.zip > irc2pc_i.c

/******************************************************************
*
*	IRC2PC Version 48
*
******************************************************************
*
*   Convert Reflection Coefficients to Predictor Coeficients
*
* Inputs:
*  RC     - Reflection coefficients
*  ORDER  - Number of RC's
*  GPRIME - Excitation modification gain
* Outputs:
*  PC     - Predictor coefficients
*  *G2PASS - Excitation modification sharpening factor
*/

#include "ourstuff.h"
#include "config.ch"
#include "lpcdefs.h"
#include 


irc2pc_i( rc, pc, gprime, g2pass, where )
int_type rc[MAXORD][11], pc[], gprime, *g2pass;
int_type where;
{
int_type i,j;
int_type temp[MAXORD];

*g2pass = 16384;

for(i=0;i>14))) >> 14;
}

*g2pass = ((long_type)gprime*(long_type)((int)(16384.*sqrt(*g2pass/16384.)))) >> 14;

pc[0] = rc[0][where] >> 2;

for(i=1;i>2)*pc[i-j-1])>>12);
	}
		
	for(j=0;j>2;
}

}