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/*
bowedbar.h:
Copyright (C) 1999 Perry Cook, Georg Essl, John ffitch
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*********************************************/
/* Bowed Bar model */
/* by Georg Essl, 1999 */
/* For details refer to: */
/* G.Essl, P.R.Cook: "Banded Waveguides: */
/* Towards Physical Modelling of Bar */
/* Percussion Instruments", ICMC'99 */
/*********************************************/
#if !defined(__BowedBar_h)
#define __BowedBar_h
#define NR_MODES (4)
#include "physutil.h"
#include "bowed.h"
/*******************************************/
/* Non-Interpolating Delay Line */
/* Object by Perry R. Cook 1995-96. */
/* Revised by Gary Scavone, 1999. */
/* */
/* This one uses either a delay line of */
/* maximum length specified on creation */
/* or a default length of 2048 samples. */
/* A non-interpolating delay line is */
/* typically used in non-time varying */
/* (reverb) applications. */
/*******************************************/
typedef struct DLineN {
AUXCH inputs;
MYFLT lastOutput;
int32 inPoint;
int32 outPoint;
int32 length;
} DLINEN;
typedef struct BowedBar {
OPDS h;
MYFLT *ar; /* Output */
MYFLT *amp, *frequency, *position, *bowPress, *GAIN;
MYFLT *integration_const, *trackVel, *bowposition, *lowestFreq;
BowTabl bowTabl;
ADSR adsr;
BiQuad bandpass[NR_MODES];
MYFLT maxVelocity;
MYFLT modes[4];
DLINEN delay[4];
/* MYFLT Zs[4][2]; */
/* MYFLT coeffs[4][2]; */
/* MYFLT filtOut[4]; */
/* MYFLT filtIn[4]; */
/* MYFLT filtGain[4]; */
MYFLT freq;
int32_t nr_modes; /* Usually 4 */
int32_t length;
MYFLT gains[4];
MYFLT velinput;
MYFLT bowvel, bowTarg, lastBowPos;
MYFLT lastpos;
/* int32_t pluck; */
MYFLT lastpress;
int32_t kloop;
} BOWEDBAR;
#endif
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