Sound distortion with SoundFile

Helllllo there! I've some problems with the sound. This is a Snake game code and I added a sound for the eaten food and one for the Game Over. While the first one works, the sound of the Game Over plays firstly correctly and afterwards horribly distorted :( What do I do wrong?

        ArrayList x = new ArrayList(), y = new ArrayList();
    int w = 27, h = 27, bs = 28, dir = 2, foodx = 12, foody = 10;
    int[] dx = {
      0, 0, 1, -1
      }
      , dy = {
        1, -1, 0, 0
    };
    boolean gameover = false;
    PFont font;

    import processing.sound.*;
    SoundFile file;
    SoundFile file2;

    void setup() {
      size (756, 756);
      smooth();

      x.add(5);
      y.add(5);
    }

    void draw() {
      background(38);

      for (int i = 0; i < w; i++)  line(i*bs, 0, i*bs, height);
      for (int i = 0; i < h; i++)  line(0, i*bs, width, i*bs);
      for (int i = 0; i < x.size (); i++) {
        fill(0, 255, 255);
        noStroke();
        rect(x.get(i)*bs, y.get(i)*bs, bs, bs);
      }
      if (!gameover) {
        fill(255, 0, 0);
        rect(foodx*bs, foody*bs, bs, bs);

        if (frameCount%5==0) {
          x.add(0, x.get(0) + dx[dir]);
          y.add(0, y.get(0) + dy[dir]);

          if (x.get(0) < 0) {
            x.set(0, w);
          }
          if (y.get(0) < 0) {
            y.set(0, h);
          }
          if (x.get(0) > w) {
            x.set(0, 0);
          }
          if (y.get(0) > h) {
            y.set(0, 0);
          }

          for (int i = 1; i < x.size (); i++) if (x.get(0)==x.get(i) && y.get(0) == y.get(i)) gameover = true;

          if (x.get(0)==foodx && y.get(0)==foody) {
            foodx = (int)random(0, w);
            foody = (int)random(0, h);
            file = new SoundFile(this, "Eat food.mp3");
            file.play();
          } else {
            x.remove(x.size()-1);
            y.remove(y.size()-1);
          }
        }
      } else {
        x.clear();
        y.clear();
        x.add(5);
        y.add(5);
        gameover = false;
      }


      int curTimeMs = millis();
      if (curTimeMs > 20000) {
        gameover = true;
        file2 = new SoundFile(this, "game over arcade.mp3");
        file2.play();
        background(0);
        font = createFont("Joystix", 50);
        textFont(font);
        fill(0, 255, 255);
        textAlign(CENTER);
        text("Game" + "\nOver", width/2, height/2);
      }
    }

    void keyPressed() {

      int newdir = keyCode==DOWN ? 0 : (keyCode==UP ? 1 : (keyCode==RIGHT ? 2 : (keyCode==LEFT ? 3 : -1)));
      if (newdir != -1 && (x.size()