public void tocarSino(final int repeticao, final long intervalo,final int audio, final Context ctx){
          Thread timerSound = new Thread(){
              public void run(){
                  try {
                      for (int i=1; i<=repeticao; i++) {
                          MediaPlayer mediaPlayer = MediaPlayer.create(ctx, audio);
                          mediaPlayer.start();
                          sleep(intervalo);
                      }
                  } catch (InterruptedException e) {
                      e.printStackTrace();
                  }
              }
          };
          timerSound.start();