This App have been created to light your flash up if sound level higher than the threshold.
1) It takes signal from the Microphone.
2) It measure and compares the audio signal level with the threshold which you set.
3) If sound level greater than the threshold which you set, the App will light up the flashlight on your phone.
NOTE:
* Different devices has different sensor manufacturers, so they could have different sensitivity from device to device. Also, with the time the sensitivity of sensor could change for one device, also temperature, humidity and atmospheric pressure could influence on the microphone sensitivity. For this we include in the app the Audio Sensor Sensitivity Adjustment via the Audio Sensor Threshold seekbar widget.