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
|
/*
* Copyright 2011 Phil Burk, Mobileer Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jsyn.instruments;
import com.jsyn.ports.UnitInputPort;
import com.jsyn.ports.UnitOutputPort;
import com.jsyn.unitgen.Add;
import com.jsyn.unitgen.Circuit;
import com.jsyn.unitgen.EnvelopeAttackDecay;
import com.jsyn.unitgen.Multiply;
import com.jsyn.unitgen.PassThrough;
import com.jsyn.unitgen.SineOscillator;
import com.jsyn.unitgen.SineOscillatorPhaseModulated;
import com.jsyn.unitgen.UnitVoice;
import com.jsyn.util.VoiceDescription;
import com.softsynth.shared.time.TimeStamp;
/**
* Drum instruments using 2 Operator FM.
*
* @author Phil Burk (C) 2011 Mobileer Inc
*/
public class DrumWoodFM extends Circuit implements UnitVoice {
private static final int NUM_PRESETS = 3;
// Declare units and ports.
EnvelopeAttackDecay ampEnv;
SineOscillatorPhaseModulated carrierOsc;
EnvelopeAttackDecay modEnv;
SineOscillator modOsc;
PassThrough freqDistributor;
Add modSummer;
Multiply frequencyMultiplier;
public UnitInputPort mcratio;
public UnitInputPort index;
public UnitInputPort modRange;
public UnitInputPort frequency;
public DrumWoodFM() {
// Create unit generators.
add(carrierOsc = new SineOscillatorPhaseModulated());
add(freqDistributor = new PassThrough());
add(modSummer = new Add());
add(ampEnv = new EnvelopeAttackDecay());
add(modEnv = new EnvelopeAttackDecay());
add(modOsc = new SineOscillator());
add(frequencyMultiplier = new Multiply());
addPort(mcratio = frequencyMultiplier.inputB, "MCRatio");
addPort(index = modSummer.inputA, "Index");
addPort(modRange = modEnv.amplitude, "ModRange");
addPort(frequency = freqDistributor.input, "Frequency");
ampEnv.export(this, "Amp");
modEnv.export(this, "Mod");
freqDistributor.output.connect(carrierOsc.frequency);
freqDistributor.output.connect(frequencyMultiplier.inputA);
carrierOsc.output.connect(ampEnv.amplitude);
modEnv.output.connect(modSummer.inputB);
modSummer.output.connect(modOsc.amplitude);
modOsc.output.connect(carrierOsc.modulation);
frequencyMultiplier.output.connect(modOsc.frequency);
// Make the circuit turn off when the envelope finishes to reduce CPU load.
ampEnv.setupAutoDisable(this);
usePreset(0);
}
@Override
public void noteOff(TimeStamp timeStamp) {
}
@Override
public void noteOn(double freq, double ampl, TimeStamp timeStamp) {
carrierOsc.amplitude.set(ampl, timeStamp);
ampEnv.input.trigger(timeStamp);
modEnv.input.trigger(timeStamp);
}
@Override
public UnitOutputPort getOutput() {
return ampEnv.output;
}
@Override
public void usePreset(int presetIndex) {
mcratio.setup(0.001, 0.6875, 20.0);
ampEnv.attack.setup(0.001, 0.005, 8.0);
modEnv.attack.setup(0.001, 0.005, 8.0);
int n = presetIndex % NUM_PRESETS;
switch (n) {
case 0:
ampEnv.decay.setup(0.001, 0.293, 8.0);
modEnv.decay.setup(0.001, 0.07, 8.0);
frequency.setup(0.0, 349.0, 3000.0);
index.setup(0.001, 0.05, 10.0);
modRange.setup(0.001, 0.4, 10.0);
break;
case 1:
default:
ampEnv.decay.setup(0.001, 0.12, 8.0);
modEnv.decay.setup(0.001, 0.06, 8.0);
frequency.setup(0.0, 1400.0, 3000.0);
index.setup(0.001, 0.16, 10.0);
modRange.setup(0.001, 0.17, 10.0);
break;
}
}
static class MyVoiceDescription extends VoiceDescription {
static String[] presetNames = {
"WoodBlockFM", "ClaveFM"
};
static String[] tags = {
"electronic", "drum"
};
public MyVoiceDescription() {
super("DrumWoodFM", presetNames);
}
@Override
public UnitVoice createUnitVoice() {
return new DrumWoodFM();
}
@Override
public String[] getTags(int presetIndex) {
return tags;
}
@Override
public String getVoiceClassName() {
return DrumWoodFM.class.getName();
}
}
public static VoiceDescription getVoiceDescription() {
return new MyVoiceDescription();
}
}
|
