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トップProcessingに関する質問processingで鍵盤を作成したいです。

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2

minimバージョン

2019/12/21 09:56

投稿

TN8001
TN8001

スコア9350

test CHANGED
@@ -22,15 +22,13 @@
22
22
 
23
23
  void setup() {
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24
 
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- size(600, 400);
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+ size(600, 400);
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-
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-
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-
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+
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- MidiBus.list();
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+ MidiBus.list();
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-
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+
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- myBus = new MidiBus(this, -1, 1); // 注２
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+ myBus = new MidiBus(this, -1, 1); // 注２
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-
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+
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- myBus.sendMessage(192, 3); // 注３
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+ myBus.sendMessage(192, 3); // 注３
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  }
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34
 
@@ -44,19 +42,17 @@
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  void keyPressed() {
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- String pitchName = getPitchName();
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+ String pitchName = getPitchName();
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+
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-
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+ if (pitchName == null) return;
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-
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-
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+
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- if (pitchName != "" && !pressedKeys.getOrDefault(pitchName, false)) {
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+ if (pressedKeys.getOrDefault(pitchName, false)) return;
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-
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+
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+
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+
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- myBus.sendNoteOn(0, (int) Frequency.ofPitch(pitchName).asMidiNote(), 127);
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+ myBus.sendNoteOn(0, (int) Frequency.ofPitch(pitchName).asMidiNote(), 127);
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-
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- }
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+
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-
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-
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-
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- pressedKeys.put(pitchName, true);
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+ pressedKeys.put(pitchName, true);
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56
 
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  }
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58
 
@@ -64,13 +60,15 @@
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60
 
65
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  void keyReleased() {
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62
 
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- String pitchName = getPitchName();
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+ String pitchName = getPitchName();
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+
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-
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+ if (pitchName == null) return;
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-
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-
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+
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+
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+
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- myBus.sendNoteOff(0, (int) Frequency.ofPitch(pitchName).asMidiNote(), 127);
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+ myBus.sendNoteOff(0, (int) Frequency.ofPitch(pitchName).asMidiNote(), 127);
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-
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+
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- pressedKeys.put(pitchName, false);
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+ pressedKeys.put(pitchName, false);
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72
 
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  }
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@@ -78,35 +76,37 @@
78
76
 
79
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  String getPitchName() {
80
78
 
81
- switch (key) {
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+ switch (key) {
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-
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+
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- case 'z': return "C4";
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+ case 'z': return "C4";
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-
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+
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- case 's': return "C#4";
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+ case 's': return "C#4";
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-
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+
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- case 'x': return "D4";
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+ case 'x': return "D4";
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-
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+
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- case 'd': return "D#4";
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+ case 'd': return "D#4";
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-
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+
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- case 'c': return "E4";
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+ case 'c': return "E4";
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-
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+
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- case 'v': return "F4";
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+ case 'v': return "F4";
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-
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+
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- case 'g': return "F#4";
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+ case 'g': return "F#4";
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-
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+
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- case 'b': return "G4";
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+ case 'b': return "G4";
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-
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+
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- case 'h': return "G#4";
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+ case 'h': return "G#4";
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-
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+
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- case 'n': return "A4";
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+ case 'n': return "A4";
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-
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+
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- case 'j': return "A#4";
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+ case 'j': return "A#4";
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-
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+
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- case 'm': return "B4";
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+ case 'm': return "B4";
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-
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+
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- }
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+ }
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-
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+
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+
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+
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- return "";
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+ return null;
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110
 
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  }
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112
 
@@ -155,3 +155,179 @@
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155
  `sendMessage(192, 3)`の`3`は音色です（`192`は気にしないでいいです）
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156
 
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  [楽器](https://ja.wikipedia.org/wiki/General_MIDI#Melodic_sounds)の`No.`の数字からいろいろ試してみてください。
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+
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+
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+
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+ ---
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+
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+
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+
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+ 追記
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+
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+
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+
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+ やっぱり気になったのでminimバージョンも。無駄にややこしくしてる気もする^^;
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+
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+
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+
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+ ```Processing
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+
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+ import ddf.minim.spi.*;
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+
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+ import ddf.minim.signals.*;
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+
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+ import ddf.minim.*;
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+
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+ import ddf.minim.analysis.*;
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+
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+ import ddf.minim.ugens.*;
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+
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+ import ddf.minim.effects.*;
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+
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+
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+
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+ Minim minim;
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+
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+ AudioOutput out;
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+
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+ HashMap<String, Keyboard> pressedKeys = new HashMap<String, Keyboard>();
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+
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+
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+
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+ void setup() {
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+
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+ size(600, 400);
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+
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+ minim = new Minim(this);
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+
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+ out = minim.getLineOut();
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+
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+ }
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+
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+
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+
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+ void draw() {
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+
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+ }
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+
213
+
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+
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+ void keyPressed() {
216
+
217
+ String pitchName = getPitchName();
218
+
219
+ if (pitchName == null) return;
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+
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+
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+
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+ Keyboard k = pressedKeys.get(pitchName);
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+
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+ if (k == null) {
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+
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+ k = new Keyboard(pitchName);
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+
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+ pressedKeys.put(pitchName, k);
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+
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+ }
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+
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+
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+
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+ k.noteOn();
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+
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+ }
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+
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+
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+
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+ void keyReleased() {
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+
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+ String pitchName = getPitchName();
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+
245
+ if (pitchName == null) return;
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+
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+
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+
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+ pressedKeys.get(pitchName).noteOff();
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+
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+ }
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+
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+
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+
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+ String getPitchName() {
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+
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+ switch (key) {
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+
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+ case 'z': return "C4";
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+
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+ case 's': return "C#4";
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+
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+ case 'x': return "D4";
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+
265
+ case 'd': return "D#4";
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+
267
+ case 'c': return "E4";
268
+
269
+ case 'v': return "F4";
270
+
271
+ case 'g': return "F#4";
272
+
273
+ case 'b': return "G4";
274
+
275
+ case 'h': return "G#4";
276
+
277
+ case 'n': return "A4";
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+
279
+ case 'j': return "A#4";
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+
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+ case 'm': return "B4";
282
+
283
+ }
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+
285
+
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+
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+ return null;
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+
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+ }
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+
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+
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+
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+ class Keyboard {
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+
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+ Oscil osc;
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+
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+ boolean pressed;
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+
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+
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+
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+ Keyboard(String pitchName) {
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+
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+ osc = new Oscil(Frequency.ofPitch(pitchName), 1.0, Waves.SAW);
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+
305
+ }
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+
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+
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+
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+ void noteOn() {
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+
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+ if (pressed) return;
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+
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+
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+
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+ osc.patch(out);
316
+
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+ pressed = true;
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+
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+ }
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+
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+
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+
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+ void noteOff() {
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+
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+ osc.unpatch(out);
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+
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+ pressed = false;
328
+
329
+ }
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+
331
+ }
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+
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+ ```

1

誤認

2019/12/21 09:56

投稿

TN8001
TN8001

スコア9350

test CHANGED
@@ -1,4 +1,4 @@
1
- `out.playNote`は鳴らす長さを入れて音を出すみたいなので、任意の長さで鳴らすのはちょっと難しそうですねぇ（何か方法はあるかもしれませんが）
1
+ ~~`out.playNote`は鳴らす長さを入れて音を出すみたいなので、任意の長さで鳴らすのはちょっと難しそうですねぇ（何か方法はあるかもしれませんが）~~
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