blob: 9323a3efc1c998bf4b8e0170dfc2f9bbfde1ae72 (
plain)
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
|
/***************************************************/
/*! \class BandedWG
\brief Banded waveguide modeling class.
This class uses banded waveguide techniques to
model a variety of sounds, including bowed
bars, glasses, and bowls. For more
information, see Essl, G. and Cook, P. "Banded
Waveguides: Towards Physical Modelling of Bar
Percussion Instruments", Proceedings of the
1999 International Computer Music Conference.
Control Change Numbers:
- Bow Pressure = 2
- Bow Motion = 4
- Strike Position = 8 (not implemented)
- Vibrato Frequency = 11
- Gain = 1
- Bow Velocity = 128
- Set Striking = 64
- Instrument Presets = 16
- Uniform Bar = 0
- Tuned Bar = 1
- Glass Harmonica = 2
- Tibetan Bowl = 3
by Georg Essl, 1999 - 2004.
Modified for Stk 4.0 by Gary Scavone.
*/
/***************************************************/
#ifndef STK_BANDEDWG_H
#define STK_BANDEDWG_H
namespace Nyq
{
const int MAX_BANDED_MODES = 20;
} // namespace Nyq
#include "Instrmnt.h"
#include "DelayL.h"
#include "BowTable.h"
#include "ADSR.h"
#include "BiQuad.h"
namespace Nyq
{
class BandedWG : public Instrmnt
{
public:
//! Class constructor.
BandedWG();
//! Class destructor.
~BandedWG();
//! Reset and clear all internal state.
void clear();
//! Set strike position (0.0 - 1.0).
void setStrikePosition(StkFloat position);
//! Select a preset.
void setPreset(int preset);
//! Set instrument parameters for a particular frequency.
void setFrequency(StkFloat frequency);
//! Apply bow velocity/pressure to instrument with given amplitude and rate of increase.
void startBowing(StkFloat amplitude, StkFloat rate);
//! Decrease bow velocity/breath pressure with given rate of decrease.
void stopBowing(StkFloat rate);
//! Pluck the instrument with given amplitude.
void pluck(StkFloat amp);
//! Start a note with the given frequency and amplitude.
void noteOn(StkFloat frequency, StkFloat amplitude);
//! Stop a note with the given amplitude (speed of decay).
void noteOff(StkFloat amplitude);
//! Perform the control change specified by \e number and \e value (0.0 - 128.0).
void controlChange(int number, StkFloat value);
protected:
StkFloat computeSample( void );
bool doPluck_;
bool trackVelocity_;
int nModes_;
int presetModes_;
BowTable bowTable_;
ADSR adsr_;
BiQuad bandpass_[MAX_BANDED_MODES];
DelayL delay_[MAX_BANDED_MODES];
StkFloat maxVelocity_;
StkFloat modes_[MAX_BANDED_MODES];
StkFloat frequency_;
StkFloat baseGain_;
StkFloat gains_[MAX_BANDED_MODES];
StkFloat basegains_[MAX_BANDED_MODES];
StkFloat excitation_[MAX_BANDED_MODES];
StkFloat integrationConstant_;
StkFloat velocityInput_;
StkFloat bowVelocity_;
StkFloat bowTarget_;
StkFloat bowPosition_;
StkFloat strikeAmp_;
int strikePosition_;
};
} // namespace Nyq
#endif
|
