1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/*
Cabinet.h
Copyright 2002-5 Tim Goetze <tim@quitte.de>
http://quitte.de/dsp/
CabinetI - 16th order IIR filters modeled after various impulse responses
from Steve Harris' 'imp' plugin. Limited to 44.1 kHz sample rate.
CabinetII - 32nd order IIR filters modeled after the same impulse responses
using a different algorithm. Versions for 44.1 / 48 / 88.2 / 96 kHz sample
rates, switched at runtime.
*/
/*
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., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA or point your web browser to http://www.gnu.org.
*/
#ifndef _CABINET_H_
#define _CABINET_H_
#include "dsp/util.h"
/* cabinet_float sets the data type used for the IIR history and thus the
* computing precision. doubles tend to make the sound more vivid and lively.
* You can squeeze out a few extra cycles by making this 'float' if needed.
* Be warned though that CabinetII has not been tested with 32-bit floats and
* might become unstable due to the lower computing precision. */
typedef double cabinet_float;
typedef struct {
int n;
cabinet_float a[16], b[16];
float gain;
} Model16;
typedef struct {
int n;
cabinet_float a[32], b[32];
float gain;
} Model32;
class CabinetI
{
public:
d_sample gain;
static Model16 models [];
int model;
void switch_model (int m);
int n, h;
cabinet_float * a, * b;
cabinet_float x[16], y[16];
d_sample normal;
template <sample_func_t F>
void one_cycle (int frames);
public:
static PortInfo port_info [];
d_sample * ports [4];
d_sample adding_gain;
void init (double _fs);
void activate();
void run (int n)
{
one_cycle<store_func> (n);
}
void run_adding (int n)
{
one_cycle<adding_func> (n);
}
};
/* Second version with 32nd order filters precalculated for
* 44.1 / 48 / 88.2 / 96 kHz sample rates */
class CabinetII
{
public:
d_sample gain;
static Model32 models44100 [];
static Model32 models48000 [];
static Model32 models88200 [];
static Model32 models96000 [];
Model32 * models;
int model;
void switch_model (int m);
int n, h;
cabinet_float * a, * b;
cabinet_float x[32], y[32];
d_sample normal;
template <sample_func_t F>
void one_cycle (int frames);
public:
static PortInfo port_info [];
d_sample * ports [4];
d_sample adding_gain;
void init (double _fs);
void activate();
void run (int n)
{
one_cycle<store_func> (n);
}
void run_adding (int n)
{
one_cycle<adding_func> (n);
}
};
#endif /* _CABINET_H_ */
|