speech signal process tools

				#ifndef _WAVPACK_H_				#define _WAVPACK_H_								#define WAVPACK_MAGIC	"wavpack1.0"								#define RUNL 256		/* max run length 								/* compression format flags */				#define BYTE 0			/* 8 bit data format */				#define SHORT 0x20		/* 16 bit data format (else 8 bit) */				#define REV 0x10		/* byte reversed (SHORT only) */				#define OFFSET 0x8		/* 1 byte data offset */				#define DIFF 0x4		/* differential pcm */				#define STEREO 0x2		/* 2 channel */				#define CHAN1 0x1		/* channel nr (0 or 1) */								#define WAV 1			/* modes */				#define UNWAV 2				#define WCAT 3								#if defined(__STDC__) || defined(__GNUC__) || defined(sgi)				#define PROTO(ARGS)	ARGS				#else				#define PROTO(ARGS)	()				#endif								void wavpack_set_monoflg PROTO((int val));				int wavpack_get_monoflg PROTO((void));				void wavpack_set_byteflg PROTO((int val));				int wavpack_get_byteflg PROTO((void));				int wavpack_set_vflg PROTO((int value));				int wavpack_set_oname PROTO((char *s));				void wavpack_set_oflg PROTO((int value));				int wavpack_set_progname PROTO((char *s));				int wavpack_free_progname PROTO((void));				void wavpack_dump_interface PROTO((FILE *fp));				int wavpack_pack PROTO((FOB *ifile, FOB *ofile));				int wavpack_unpack PROTO((FOB *ifile, FOB *ofile));								#endif