Exception in thread "Animation Thread" java.lang.NullPointerException
	at ddf.mimin.javasound.JSMinim.getAudioInputStream(JSMinim.java:543)
	at ddf.mimin.javasound.JSMinim.getAudioSample(JSMinim.java:285)
	at ddf.minim.Minim.loadSample(Minim.java:210)
	at Sampler_1538.keyReleased(Sampler_1538.java:156)
	at processing.core.PApplet.handleKeyEvent(PApplet.java:1756)
	at processing.core.PApplet.dequeueKeyEvents(PApplet.java:1735)
	at processing.core.PApplet.handleDraw(PApplet.java:1437)
	at processing.core.PApplet.run(PApplet.java:1327)
	at java.lang.Thread.run(Thread.java:637)
 

// SELF-SAMPLER

import ddf.minim.*;
import ddf.minim.signals.*;

Minim minim;
AudioInput in;
AudioRecorder recorder1;
AudioRecorder recorder2;
AudioRecorder recorder3;
AudioRecorder recorder4;
AudioRecorder recorder5;
AudioRecorder recorder6;
AudioSample sound1;
AudioSample sound2;
AudioSample sound3;
AudioSample sound4;
AudioSample sound5;
AudioSample sound6;

int pad = 0;

void setup() {
  background(0); 
  size(600, 400);

  // Line In einfangen
  minim = new Minim(this);
  in = minim.getLineIn(Minim.STEREO, 2048);
  recorder1 = minim.createRecorder(in, "sound1.wav", true);
  recorder2 = minim.createRecorder(in, "sound2.wav", true);
  recorder3 = minim.createRecorder(in, "sound3.wav", true);
  recorder4 = minim.createRecorder(in, "sound4.wav", true);
  recorder5 = minim.createRecorder(in, "sound5.wav", true);
  recorder6 = minim.createRecorder(in, "sound6.wav", true);
	  
  // Pads farbig
  noStroke();
  fill(255, 85, 0);
  rect(0, 0, 200, 200);
  fill(255, 128, 66);
  rect(200, 0, 200, 200);
  fill(254, 170, 128);
  rect(400, 0, 200, 200);
  fill(255, 150, 0);
  rect(0, 200, 200, 200);
  fill(254, 180, 73);
  rect(200, 200, 200, 200);    
  fill(254, 203, 128);
  rect(400, 200, 200, 200);

  // Anweisung in print-Fenster
  println("Zum Aufnehmen muss der Mauszeiger über einem der 6 Pads schweben.");
  println("r = Aufnahme Start/Stop, s = Aufnahme speichern, 1-6 = Aufnahme spielen"); 

}

void draw() {
  float ms = millis() % 10000;

  // Pad bestimmen
  if (mouseX > 0 && mouseX < 200 && mouseY > 0 && mouseY < 200) {
    pad = 1;
  }
  if (mouseX > 200 && mouseX < 400 && mouseY > 0 && mouseY < 200) {
    pad = 2;
  }
  if (mouseX > 400 && mouseX < 600 && mouseY > 0 && mouseY < 200) {
    pad = 3;
  }
  if (mouseX > 0 && mouseX < 200 && mouseY > 200 && mouseY < 400) {
    pad = 4;
  }
  if (mouseX > 200 && mouseX < 400 && mouseY > 200 && mouseY < 400) {
    pad = 5;
  }
  if (mouseX > 400 && mouseX < 600 && mouseY > 200 && mouseY < 400) {
    pad = 6;
  }
}

// Aufnahme
void keyReleased() {
  // Checken ob Mauszeiger über Pad1
  if (pad == 1) { 
    if (key == 'r') { 
	// Mit 'r' Aufnahme starten/beenden
	if (recorder1.isRecording()) {
	  recorder1.endRecord();
	} 
	else {
	  recorder1.beginRecord();
	}
    }
    // Mit 's' Aufnahme speichern
    if (key == 's') {  
	recorder1.save();
	println("Pad1 mit Sound belegt.");
    }
  }
  // Pad1 abspielen
  if ( key == '1' ) { 
    sound1 = minim.loadSample("sound1.wav", 2048);
    sound1.trigger();
  }
  
  if (pad == 2) {
    if (key == 'r') { 
	if (recorder2.isRecording()) {
	  recorder2.endRecord();
	} 
	else {
	  recorder2.beginRecord();
	}
    }
    if (key == 's') {  
	recorder2.save();
	println("Pad2 mit Sound belegt.");
    }
  }
  if ( key == '2' ) { 
    sound2 = minim.loadSample("sound2.mp3", 2048);
    sound2.trigger();
  }
  
    if (pad == 3) {
    if (key == 'r') { 
	if (recorder3.isRecording()) {
	  recorder3.endRecord();
	} 
	else {
	  recorder3.beginRecord();
	}
    }
    if (key == 's') {  
	recorder3.save();
	println("Pad3 mit Sound belegt.");
    }
  }
  if ( key == '3' ) { 
    sound3 = minim.loadSample("sound3.wav", 2048);
    sound3.trigger();
  }
  
	if (pad == 4) {
    if (key == 'r') { 
	if (recorder4.isRecording()) {
	  recorder4.endRecord();
	} 
	else {
	  recorder4.beginRecord();
	}
    }
    if (key == 's') {  
	recorder4.save();
	println("Pad4 mit Sound belegt.");
    }
  }
  if ( key == '4' ) { 
    sound4 = minim.loadSample("sound4.wav", 2048);
    sound4.trigger();
  }
 
     if (pad == 5) {
    if (key == 'r') { 
	if (recorder5.isRecording()) {
	  recorder5.endRecord();
	} 
	else {
	  recorder5.beginRecord();
	}
    }
    if (key == 's') {  
	recorder5.save();
	println("Pad5 mit Sound belegt.");
    }
  }
  if ( key == '5' ) { 
    sound5 = minim.loadSample("sound5.wav", 2048);
    sound5.trigger();
  }
  
	if (pad == 6) {
    if (key == 'r') { 
	if (recorder6.isRecording()) {
	  recorder6.endRecord();
	} 
	else {
	  recorder6.beginRecord();
	}
    }
    if (key == 's') {  
	recorder6.save();
	println("Pad6 mit Sound belegt.");
    }
  }
  if ( key == '6' ) { 
    sound6 = minim.loadSample("sound6.wav", 2048);
    sound6.trigger();
  }
  if ( key == '0' ) { 
  in.close();
  minim.stop();
  super.stop();
  }
  
}

// Bei Schließen des Programmes aller Ton aus
void stop()
{
  in.close();
  minim.stop();
  super.stop();
}