sigcvt.h

一个语音信号端点检测的程序

/*
 * Signal conversion routines
 *
 * Bruce T. Lowerre, Public domain, 1995, 1997
 *
 * $Log: sigcvt.h,v $
 * Revision 1.1  1997/05/13 14:55:17  lowerre
 * Initial revision
 *
 *
 */

/*
 * This header file defines the sigconvert class structure.  This is used to
 * convert mu-law and a-law byte samples to 16 bit linear.
 */

#ifndef SIGCONVERT_H
#define SIGCONVERT_H

class sigconvert
{
    private:
        static short mulawtable[];
        static short alawtable[];
    public:
        short mulaw_to_short (unsigned char smp) {return (mulawtable[smp]);}
        short alaw_to_short (unsigned char smp) {return (alawtable[smp]);}
}; // end class sigconvert

#endif