public void playBeepSoundAndVibrate() {
    if (playBeep && mediaPlayer != null) {
      mediaPlayer.start();
    }
  }
Manages beeps and vibrations for {@link CaptureActivity}.

The code for this class was adapted from the ZXing project: http://code.google.com/p/zxing/
OCRTest/src/main/java/edu/sfsu/cs/orange/ocr/BeepManager.java