/* Copyright (c) 1995 Entropic Research Laboratory, Inc. *//* @(#)tracks.h	1.2 9/26/95 ATT/ERL/ESI *//* * This material contains unpublished, proprietary software of  * Entropic Research Laboratory, Inc. Any reproduction, distribution,  * or publication of this work must be authorized in writing by Entropic  * Research Laboratory, Inc., and must bear the notice:  * *    "Copyright (c) 1987-1990  AT&T, Inc. *    "Copyright (c) 1986-1990  Entropic Speech, Inc.  *    "Copyright (c) 1990-1993  Entropic Research Laboratory, Inc.  *                   All rights reserved" * * The copyright notice above does not evidence any actual or intended  * publication of this source code.      * * * Written by:   * Checked by: * Revised by: * * Brief description: * */#define DEB_PAUSE	8	/* debug levels */#define DEB_LPC_PARS	4#define DEB_PARAMS	2#define DEB_ENTRY	1#ifndef TRUE#define TRUE 1#define FALSE 0#endif#define PI 3.1415927/* Structure definitions for the formant tracker.. */typedef struct form_latt {         /* structure of a DP lattice node for formant tracking */	short ncand; /* # of candidate mappings for this frame */	short **cand;      /* pole-to-formant map-candidate array */	short *prept;	 /* backpointer array for each frame */	double *cumerr; 	 /* cum. errors associated with each cand. */} FORM;typedef struct pole_array {   /* structure to hold raw LPC analysis data */	double rms;    /* rms for current LPC analysis frame */	double rms2;    /* rms for current F0 analysis frame */	double f0;     /* fundamental frequency estimate for this frame */	double pv;		/* probability that frame is voiced */	double change; /* spec. distance between current and prev. frames */	short npoles; /* # of complex poles from roots of LPC polynomial */	double *freq;  /* array of complex pole frequencies (Hz) */	double *band;  /* array of complex pole bandwidths (Hz) */} POLE;/* End of structure definitions for the formant tracker. */