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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
#include <MIDI.h>
#include <MozziGuts.h>
#include <Oscil.h>
#include <mozzi_midi.h>
#include <mozzi_fixmath.h>
#include <tables/saw256_int8.h>
#include <tables/sin256_int8.h>
#include <ADSR.h>
#include <LowPassFilter.h>
#include "pitchbendArray.h"
#include "multiFilter.h"
#include "lfoFreqArray.h"
#define CONTROL_RATE 256
int tableChange = 0;
Oscil <SAW256_NUM_CELLS, AUDIO_RATE> nco[] =
{(SAW256_DATA), (SAW256_DATA), (SAW256_DATA)};
Oscil <SIN256_NUM_CELLS, CONTROL_RATE> lfoOne(SIN256_DATA),
lfoTwo(SIN256_DATA);
ADSR <CONTROL_RATE> adsr_envelope;
ADSR <CONTROL_RATE> adsr_filter;
int noteBuffer[4];
int bufferIndex = 0;
float pbAmount = 0.0;
float lastMidiNote = 0.0;
float oscDet[2];
LowPassFilter lpf;
int lastLfoValues[2];
Multifilter mf(0);
bool lfoEffect[2][7]; //0:oscil1, 1:oscil2, 2:oscil3, 3:envelope, 4:cutoff, 5: det osc2, 6: det osc3
int lastFilter = 0;
void handlePitchBend(byte channel, byte lsb, byte msb) {
pbAmount = pgm_read_float_near(PB_ARRAY+msb);
jouerNote(lastMidiNote);
}
void handleNoteOn(byte channel, byte note, byte velocity) {
//If velocity is 0, the noteOn message is equivalent to a noteOff message.
if(velocity == 0) {
handleNoteOff(channel, note, velocity);
return;
}
for(int i = 3; i > 0; i--) {
noteBuffer[i] = noteBuffer[i - 1];
}
noteBuffer[0] = note;
jouerNote((float)note);
adsr_filter.noteOn();
adsr_envelope.noteOn();
}
void jouerNote(float note) {
// Note joué sur le clavier additionnée du pitch bend.
float totalNote = note + pbAmount;
nco[0].setFreq(Q16n16_to_float(Q16n16_mtof(float_to_Q16n16(totalNote))));
for(int i = 0; i < 2; i++) {
// Note globale plus le désacordage de l'oscillateur.
float noteOscil = oscDet[i] + totalNote;
nco[i+1].setFreq(Q16n16_to_float(Q16n16_mtof(float_to_Q16n16(noteOscil))));
}
//lastFreq = Q16n16_to_float(Q16n16_mtof(float_to_Q16n16(totalNote)));
//nco[0].setFreq(lastFreq);
// nco[1].setFreq(Q16n16_to_float(Q16n16_mtof(float_to_Q16n16(totalNote+12))));
// nco[2].setFreq(lastFreq);
lastMidiNote = note;
}
void handleNoteOff(byte channel, byte note, byte velocity) {
int i = 0;
while(i < 3 && noteBuffer[i] != note) {
i++;
}
while(i < 3) {
noteBuffer[i] = noteBuffer[i + 1];
i += 1;
}
if(i < 4) {
noteBuffer[3] = -1;
}
if(noteBuffer[0] != -1) {
jouerNote((float)noteBuffer[0]);
} else {
adsr_filter.noteOff();
adsr_envelope.noteOff();
}
}
void setup() {
MIDI.setHandleNoteOn(handleNoteOn);
MIDI.setHandleNoteOff(handleNoteOff);
MIDI.setHandlePitchBend(handlePitchBend);
nco[0].setFreq(400);
nco[1].setFreq(333);
//nco[2].setFreq(300);
startMozzi(CONTROL_RATE);
MIDI.begin();
lfoOne.setFreq((float)0.3);
lfoTwo.setFreq(5);
for(int i = 0; i < 3; i++) {
noteBuffer[i] = -1;
}
adsr_envelope.setADLevels(255, 210);
adsr_envelope.setTimes(188, 345, 65000, 345);
adsr_envelope.setSustainLevel(255);
mf.setResonance(156);
lastLfoValues[0] = 0;
lastLfoValues[1] = 0;
}
void updateControl() {
lastLfoValues[0] = lfoOne.next();
lastLfoValues[1] = lfoTwo.next();
// Oscillator detune.
//
int filterReading = mozziAnalogRead(0)>>8;
if (lastFilter != filterReading ) {
mf.changeFilter(filterReading);
lastFilter = filterReading;
}
for (int i = 0; i < 2; i ++){
if(lfoEffect[i][5] || true){
oscDet[0] = pgm_read_float_near(PB_ARRAY+((lastLfoValues[i]+127)>>1));
}
if(lfoEffect[i][6]){
oscDet[1] = pgm_read_float_near(PB_ARRAY+((lastLfoValues[i]+127)>>1));
}
}
// TODO : Lire la valeur sur des knobs.
int cutoff = 255;
for (int i = 0 ; i <2 ; i++){
if(lfoEffect[i][4]){
//cutoff = (cutoff * (lastLfoValues[i]+127)) >>7;
}
}
mf.setCutoffFreq(cutoff * adsr_envelope.next() >> 8);
// Lis et traite les valeurs midi.
MIDI.read();
jouerNote(lastMidiNote);
// Update l'adsr.
adsr_envelope.update();
}
int updateAudio() {
//adsr.next();
int osc1 = nco[0].next();
int osc2 = nco[1].next();
int osc3 = /*nco[2].next()*/0;
for(int i=0;i<2;i++) {
if(lfoEffect[i][0] || true) {
//osc1 = (osc1*lastLfoValues[i])>>7;
}
if(lfoEffect[i][1] || true) {
//osc2 = (osc2*lastLfoValues[i])>>7;
}
if(lfoEffect[i][2] || true) {
//osc3 = (osc3*lastLfoValues[i])>>7;
}
/**if(lfoEffect[i][4]) {
total = ((osc1+osc2+osc3)*lastLfoValues[i])>>9;
}
else {
total = (osc1+osc2+osc3)>>2;
}*/
}
int total = (osc1+osc2+osc3)>>2;
for(int i=0; i<2; i++){
if(lfoEffect[i][3] || true) {
//total = (total*lastLfoValues[i])>>7;
}
}
return (int) (adsr_envelope.next()*(mf.next(total)))>>2;
}
void loop() {
audioHook();
}
|
