Example that demonstrates all types in a single frame.

examples/AllSoundtracks/AllSoundtracks.pde

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+import processing.sound.*;
+import soundtrack.optical.*;
+
+SoundtrackOptical soundtrack1;
+SoundtrackOptical soundtrack2;
+SoundtrackOptical soundtrack3;
+SoundtrackOptical soundtrack4;
+SoundtrackOptical soundtrack5;
+
+//String soundtrackFile = "../../data/barking.wav";
+String soundtrackFile = "/Users/matthewmcwilliams9/Documents/Processing/optical_soundtrack/barking.wav";
+int dpi = 2400;
+float volume = 1.0;
+String pitch = "long";
+boolean positive = true;
+
+void setup() {
+  size(1065, 620);
+  soundtrack1 = new SoundtrackOptical(this, soundtrackFile, dpi, volume, "unilateral", pitch, positive);
+  soundtrack2 = new SoundtrackOptical(this, soundtrackFile, dpi, volume, "variable area", pitch, positive);
+  soundtrack3 = new SoundtrackOptical(this, soundtrackFile, dpi, volume, "dual variable area", pitch, positive);
+  soundtrack4 = new SoundtrackOptical(this, soundtrackFile, dpi, volume, "maurer", pitch, positive);
+  soundtrack5 = new SoundtrackOptical(this, soundtrackFile, dpi, volume, "variable density", pitch, positive);
+}
+
+void draw () {
+  soundtrack1.frame(0, 0);
+  soundtrack2.frame(213, 0);
+  soundtrack3.frame(213 * 2, 0);
+  soundtrack4.frame(213 * 3, 0);
+  soundtrack5.frame(213 * 4, 0);
+  
+  stroke(255, 0, 0);
+  for (int i = 1; i < 5; i++) {
+    line(213 * i, 0, 213 * i, height);
+  }
+}