Decibel meter uses your built-in microphone to measure sound volume in decibels

* Main Features
- Display min/max/avg decibel values
- Display Elapsed time of decibel
- Line chart notification
- Indicates decibel by gauge
- Display the current noise reference
- Support Dark / Light Theme

** Notes **
Microphones in most devices are aligned to the human voice and the maximum values are limited by hardware.