I'm currently writing a program that's basically a grid sequencer, and I had an audio question. Currently, my program can detect "hits" by displaying fill colors, but I'd like a variable audio sample (one of 16) to play depending on the position of the tile. I have my program split up into three different classes: Timer, Column, and Tile. It works by passing timing and placement information into an array of the Columns, which is made up of an array of the Tiles. I based my audio integration off of the following doorbell tutorial:  http://www.learningprocessing.com/examples/chapter-20/example-20-3/

I was able to get it so a single sound played any time a tile was clicked, but whenever I tried to load a second sound I got an out of memory error. I should have plenty of memory for two data sounds, so I'm guessing I made a mistake somewhere along the line, and I'd appreciate someone taking a look at it. Thanks!

2. //*********** Visical Revision 10
3. 
   
4. Timer timer;
5. 
   
6. import ddf.minim.*;
7. 
   
8. Column [] columns;
9. Minim minim;
10. 
    
11. int interval = 100;
12. 
    
13. int measureH = 16;
14. int measureL = 60;
15. int timerSpeed = interval*measureL;
16. 
    
17. int dL = measureL*25;
18. 
    
19. float mxMain, myMain;
20. 
    
21. 
    
22. void setup() {
23.   size(dL, 400);
24.   minim = new Minim(this);
25. 
    
26.   timer = new Timer(timerSpeed);
27.   timer.start();
28. 
    
29.   columns = new Column[measureL];
30. 
    
31.   for (int i=0; i<columns.length; i++) {
32.     columns[i] = new Column(i, measureH, interval, "dingdong.wav", "BD.wav");
33.   }
34. }
35. 
    
36. void draw() {
37.   
38. 
    
39. 
    
40.   int m = timer.passedTime;
41. 
    
42. 
    
43. 
    
44.   if (timer.isFinished()) {
45.     timer.start();
46.   }
47.   
48.   //println("timer.passedTime " +timer.passedTime);
49.   
50. 
    
51.   mxMain = mouseX;
52.   myMain = mouseY;
53. 
    
54.   for (int i=0; i<columns.length; i++) {
55.     columns[i].display(mxMain, myMain, m);
56.   }
57.   
58.       if(mousePressed){
59.     ellipseMode(CENTER);
60.     ellipse(mouseX, mouseY, 10, 10);
61.   }
62.   ////////////////////////////****************Drawing
63. 
    
64.     
65.   
66.   
67. }
69. 
    
70. //////////////////// Column Class
71. 
    
73. class Column {// class start
74. 
    
75.   Tile [] tiles;
76. 
    
77.   int spacerX = 25;
78.   int spacerY = 25;
79.   int val, high, play, interval;
80.   float count;
81.   
82.   
83.   
84. 
    
85.   Column(int tempVal, int tempHigh, int tempInt, String filename, String filename2) { //Start constructor>>>>>>>>>
86. 
    
87.     val = tempVal;
88.     high = tempHigh;
89.     interval = tempInt;
90.     play = 0;
91. 
    
92. 
    
93. 
    
94. 
    
95.     tiles = new Tile[high];
96.     for (int i=0; i < tiles.length; i++) {
97.       tiles[i] = new Tile(spacerX*val, spacerY*i, spacerY, filename, filename2);
98.     }
99.   } // End constructor>>>>>>>>>>>>>>>>>>>
100. 
     
101.   void display(float dmx, float dmy, float cT) {/////////////Display
102.   
103.   count = cT;
104. 
     
105.     if (count >= val*interval && count < (val+1)*interval) {
106.       play = 1;
107.     }
108.     else {
109.       play = 0;
110.     }
111. 
     
112. 
     
113.     for (int i=0; i<tiles.length; i++) {
114.       tiles[i].display(dmx, dmy, play);
115.     }
116.   }////////////////End Display
117. }// class end
118. 
     
119. ///////////// Tile Class
120. 
     
122. class Tile {//Class Start
123. 
     
124.   int x, y, spacer;
125.   boolean pressed, play;
126.   int w, h;
127. 
     
128.   color c = color(170, 170, 170);
129. 
     
130.   AudioSnippet dingdong1;
131.   AudioSnippet dingdong2;
132. 
     
133. 
     
134.   Tile(int tempX, int tempY, int tempSpace, String filename, String filename2) {
135.     w = tempSpace;
136.     h = tempSpace;
137.     y = tempY;
138.     x = tempX;
139. 
     
140.     dingdong1 = minim.loadSnippet(filename);
141.     dingdong2 = minim.loadSnippet(filename2);
142.   } // End constructor
143. 
     
144. 
     
145.   void ring1() {
146.     if (!dingdong1.isPlaying()) {
147.       // The ring() function plays the sound, as long as it is not already playing. 
148.       // rewind() ensures the sound starts from the beginning.
149.       dingdong1.rewind(); 
150.       dingdong1.play();
151.     }
152.   }
153.   
154.     void ring2() {
155.     if (!dingdong2.isPlaying()) {
156.       // The ring() function plays the sound, as long as it is not already playing. 
157.       // rewind() ensures the sound starts from the beginning.
158.       dingdong2.rewind(); 
159.       dingdong2.play();
160.     }
161.   }
162. 
     
163. 
     
164.   void display(float mx, float my, float p) {
165.     fill(c);
166.     rect(x, y, w, h);
167. 
     
168. 
     
169.     if (p >= 1) {
170.       play = true;
171.       
172.     } 
173.     else {
174.       play = false;
175.     }
176. 
     
177.     if (mx >= x && mx <= x+w &&
178.       my >= y && my <= y+h &&
179.       mousePressed) {
180.       pressed=true;
181.     }   
182. 
     
183. 
     
184.     if (pressed &&
185.       play) {
186.       c = color(170, 170, 0);
187.       
188.       if(x > 200){
189.       ring1();
190.       } else if (x < 200){
191.         ring2();
192.       }
193.     }
194.     else if (play) {
195.       c = color(0, 0, 170);
196.     } 
197.     else if (pressed) {
198.       c = color(0, 170, 170);
199.     }
200. 
     
201.     else {
202.       c = color(170, 170, 170);
203.     }
204.   } //End Display
205. 
     
206.   void close() {
207.     // The doorbell has a close() function to close the AudioPlayer object.
208.     dingdong1.close();
209.     dingdong2.close();
210.   }
211. } // Class End
212. 
     
213. 
     
214. ///////////////////// Timer Class
215. 
     
217. class Timer {
218.  
219.   int savedTime; // When Timer started
220.   int totalTime; // How long Timer should last
221.   int passedTime;
222.   
223.   Timer(int tempTotalTime) {
224.     totalTime = tempTotalTime;
225.   }
226.   
227.   // Starting the timer
228.   void start() {
229.     savedTime = millis(); 
230.     //println("timer.savedTime "+ savedTime);
231.   }
232.   
233.   boolean isFinished() { 
234.     passedTime = millis()- savedTime;
235.     if (passedTime > totalTime) {
236.       return true;
237.     } else {
238.       return false;
239.     }
240.   }
241. }