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/*
(c) Fraser Stuart 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define REVERB_SPACE_SIZE 2 /* size in seconds */
#define MAX_ER 60 /* maximun number of early reflections to calculate */
#define SPEED_OF_SOUND 330 /* speed of sound in air in meters/second */
#define OBJECT_HEIGHT 1.5 /* the height of the sound source and the listener */
struct ERunit {
int Active;
LADSPA_Data rand;
LADSPA_Data DelayActual;
LADSPA_Data DelayOffset;
unsigned long Delay;
unsigned int Reflections;
LADSPA_Data AbsGain;
LADSPA_Data GainL;
LADSPA_Data GainR;
};
/* works out the reflection details */
void calculateIreverbER(LADSPA_Handle Instance);
/* works out a single reflection */
void calculateSingleIreverbER(struct ERunit * er, LADSPA_Data Width, LADSPA_Data Length, LADSPA_Data Height, int Phase, unsigned int reflections, LADSPA_Data DDist, unsigned long sr);
/* control conversion function */
LADSPA_Data convertParam(unsigned long param, LADSPA_Data value, unsigned long sr);
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