plot.h

语音信号处理工具包,里面提供了很多有用的操作。这是最新版本

/*
  ----------------------------------------------------------------
	Speech Signal Processing Toolkit (SPTK): version 3.0
			 SPTK Working Group

		   Department of Computer Science
		   Nagoya Institute of Technology
				and
    Interdisciplinary Graduate School of Science and Engineering
		   Tokyo Institute of Technology
		      Copyright (c) 1984-2000
			All Rights Reserved.

  Permission is hereby granted, free of charge, to use and
  distribute this software and its documentation without
  restriction, including without limitation the rights to use,
  copy, modify, merge, publish, distribute, sublicense, and/or
  sell copies of this work, and to permit persons to whom this
  work is furnished to do so, subject to the following conditions:

    1. The code must retain the above copyright notice, this list
       of conditions and the following disclaimer.

    2. Any modifications must be clearly marked as such.

  NAGOYA INSTITUTE OF TECHNOLOGY, TOKYO INSITITUTE OF TECHNOLOGY,
  SPTK WORKING GROUP, AND THE CONTRIBUTORS TO THIS WORK DISCLAIM
  ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
  SHALL NAGOYA INSTITUTE OF TECHNOLOGY, TOKYO INSITITUTE OF
  TECHNOLOGY, SPTK WORKING GROUP, NOR THE CONTRIBUTORS BE LIABLE
  FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
  DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  PERFORMANCE OF THIS SOFTWARE.
 ----------------------------------------------------------------
*/

/****************************************************************
*	HEADER for XY-PLOTTER library				*
*								*
*	Following commands are valid for the xy plotter FP5301	*
*								*
*						Oct. 1, 1985	*
****************************************************************/

#include <stdio.h>

/* commands for FP5301 */

#define	TRM		0				/* terminator */

#define	_speed(l, n)	printf("!%d %d%c", l, n, TRM)	/* speed */
#define	_speed_all(l)	printf("!%d%c", l, TRM)		/* speed */
#define	ERRMASK	0x8022			/* error mask		*/
#define	_font(n)	printf("$%d%c", n, TRM)		/* font	*/
#define	_hatch(m,p,t)	printf("%%%d %d %d\n", m, p, t)	/* hatching */
#define _factor(p,q,r)	printf("&%d %d %d\n", p, q, r)	/* factor */
#define	ELLIPS	0x8029			/* ellips		*/
#define	_rotate(x,y,t)	printf("/%d %d %d\n", x, y, t)	/* rotate */
#define	clear()		putchar(':')			/* clear */
#define	ifclear()	putchar(';')			/* interface clear */
#define	term(t)		printf("=%c%c", t, t)		/* term */
#define	CLIP	0x803e			/* clipping		*/
#define	RDOFF	0x803f			/* read offset		*/
#define ARESET	0x8041			/* alpha reset		*/
#define line_scale(l)	printf("B%d\n", l)		/* line scale */
#define draw(x, y)	printf("D%d %d\n%c", x, y, TRM)	/* draw	*/
#define _draw()		putchar('D')			/* draw	command */
#define rdraw(x, y)	printf("E%d %d\n%c", x, y, TRM)	/* relative draw */
#define	home();		putchar('H')			/* home	*/
#define	aitalic(p)	printf("I%d\n", p)		/* alpha italic	*/
#define newpen(p)	printf("J%d\n", p)		/* new pen */
#define KANA	0x804b			/* kana			*/
#define line_type(p)	printf("L%d\n", p)		/* line type */
#define	move(x, y)	printf("M%d %d\n", x, y)	/* move	*/
#define _mark(m)	printf("N%d\n", m)		/* mark	*/
#define rmove(x, y)	printf("O%d %d\n", x, y)	/* relative move */
#define print(p)	printf("P%s%c", p, TRM)		/* print */
#define aspace(l)	printf("Q%d\n", l)		/* alpha space */
#define arotate(t)	printf("R%d\n", t)		/* alpha rotate	*/
#define ascale(a)	printf("S%d\n", a)		/* alpha scale */
#define	PROMPT	0x8054			/* prompt light		*/
#define	_circle(x,y,q,r,s,t)	printf("W%d %d %d %d %d %d%c",x,y,q,r,s,t,TRM)
							/* circle */
#define	_axis(p,q,r,s,t)	printf("X%d %d %d %d %d%c", p,q,r,s,t,TRM)
							/* axis	*/
#define	_curve(a)	printf("Y%d\n", a)		/* curve */
#define	wup_left(x, y)	printf("Z%d %d\n", x, y)	/* write upper right */
#define	wlo_right(x, y)	printf("\\%d %d\n", x, y)	/* write lower left */
#define	_rcircle(q,r,s,t)	printf("]%d %d %d %d%c",q,r,s,t,TRM)
							/* relative circle */
#define	_offset(x, y)	printf("^%d %d\n", x, y)	/* offset */
#define	RCURVE	0x805f			/* relative curve	*/
#define	asciimode()	printf("%c%c", 0x80, 0)		/* binary terminator */
#define	terminate()	putchar(TRM)			/* terminator */
#define	sndcord(x, y)	printf("%d %d\n", x, y)		/* send (x, y) */

/* interfacing */

struct co_ord {
	float	xo;
	float	yo;
	};

#define sign(x)		(x & 0xffff8000)

double	sin(), cos(), tan();
#define	DEG_RAD		(3.141592653589793 / 180.0)

#define SCALE	4096