@Override
 public void setPosition(PhysicalLocation p) {
   super.setPosition(p);
   if (use_start_sound) {
     start_sound.setPosition(p);
   }
   if (use_mid_sound) {
     mid_sound.setPosition(p);
   }
   if (use_end_sound) {
     end_sound.setPosition(p);
   }
   if (use_short_sound) {
     short_sound.setPosition(p);
   }
 }