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/Users/lyon/j4p/src/sound/musica/Utils.java
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1 package sound.musica;
2
3 /*
4 * Open Source Software by http://www.Docjava.com
5 * programmer: D. Lyon
6 * e-mail: lyon@docjava.com
7 * Date: Apr 29, 2002
8 * Time: 12:35:09 PM
9 */
10
11 import javax.sound.midi.*;
12
13 public class Utils {
14 private static MidiChannel channels[] = null;
15 private static Synthesizer synth = null;
16 public static final String[] instruments =
17 {"Acoustic bass drum", "Bass drum 1", "Side stick", "Acoustic snare",
18 "Hand clap", "Electric snare", "Low floor tom", "Closed hi-hat",
19 "High floor tom", "Pedal hi-hat", "Low tom", "Open hi-hat",
20 "Low-mid tom", "Hi-mid tom", "Crash cymbal 1", "High tom",
21 "Ride cymbal 1", "Chinese cymbal", "Ride bell", "Tambourine",
22 "Splash cymbal", "Cowbell", "Crash cymbal 2", "Vibraslap",
23 "Ride cymbal 2", "Hi bongo", "Low bongo", "Mute hi conga",
24 "Open hi conga", "Low conga", "High timbale", "Low timbale",
25 "High agogo", "Low agogo", "Cabasa", "Maracas",
26 "Short whistle", "Long whistle", "Short guiro", "Long guiro",
27 "Claves", "Hi wood block", "Low wood block", "Mute cuica",
28 "Open cuica", "Mute triangle", "Open triangle"};
29
30 public static void play(int ia[], int vel, int dur) {
31 for (int i = 0; i < ia.length; i++)
32 play(ia[i], vel, dur);
33 }
34
35 public static void playThread(
36 final int ia[],
37 final int vel,
38 final int dur) {
39 Runnable r = new Runnable() {
40 public void run() {
41 for (int i = 0; i < ia.length; i++)
42 play(ia[i], vel, dur);
43
44 }
45 };
46 Thread t = new Thread(r);
47 t.start();
48 }
49
50 public static void play(int ia[], int dur) {
51 for (int i = 0; i < ia.length; i++)
52 play(ia[i], 127, dur);
53 }
54
55 public static int[] transpose(int ia[], int bias) {
56 int ans[] = new int[ia.length];
57 for (int i = 0; i < ans.length; i++)
58 ans[i] = ia[i] + bias;
59 return ans;
60 }
61
62 public static void print(int ia[]) {
63 for (int i = 0; i < ia.length; i++)
64 System.out.println(ia[i]);
65 }
66
67 public static void play(int nn) {
68 play(nn, 127, 20);
69 }
70
71 public static void play(int nn, int dur) {
72 play(nn, 127, dur);
73 }
74
75 public static void play(int nn, int vel, int dur) {
76 play(getSynthesizer(), nn, vel, dur);
77 }
78
79 //protected static void play(Synthesizer synth, int nNoteNumber,
80 // int nVelocity, int nDuration) {
81 // Carl Weiman replacement below, 07-OCT-03
82 public static void play(Synthesizer synth, int nNoteNumber,
83 int nVelocity, int nDuration) {
84 noteOn(nNoteNumber, nVelocity);
85 if (nDuration < 0) return;
86 sleep(nDuration);
87 noteOff(nNoteNumber);
88 System.out.println("synthesizer=" + synth);
89 }
90
91 private static void noteOff(int nNoteNumber) {
92 channels[0].noteOff(nNoteNumber);
93 }
94
95 private static void noteOn(int nNoteNumber, int nVelocity) {
96 channels[0].noteOn(nNoteNumber, nVelocity);
97 }
98
99 private static void sleep(int nDuration) {
100 try {
101 Thread.sleep(nDuration);
102 } catch (InterruptedException e) {
103 }
104 }
105
106 //protected static Synthesizer getSynthesizer() {
107 // Carl Weiman replacement below, 07-OCT-03
108 public static Synthesizer getSynthesizer() {
109 Synthesizer synth = initSynth();
110 openSynth(synth);
111 channels = initChannel(synth);
112 return synth;
113 }
114
115 private static Synthesizer initSynth() {
116 if (synth != null) return synth;
117 try {
118 synth = MidiSystem.getSynthesizer();
119 } catch (MidiUnavailableException e) {
120 }
121 return synth;
122 }
123
124 private static void openSynth(Synthesizer synth) {
125 try {
126 synth.open();
127 } catch (MidiUnavailableException e) {
128 e.printStackTrace();
129 synth.close();
130 //System.exit(1);
131 }
132 }
133
134 private static MidiChannel[] initChannel(Synthesizer synth) {
135 MidiChannel[] channels = synth.getChannels();
136 return channels;
137 }
138
139 public static Sequencer getAndOpenSequencer()
140 throws MidiUnavailableException {
141 Sequencer sequencer = MidiSystem.getSequencer();
142 sequencer.open();
143 return sequencer;
144 }
145
146 }
147