It is an application to measure the ambient noise level, the size of the voice.
It is displayed in 19 steps using the metaphor easy to understand noise level.

Usage
First, I will start the app when such noise is a concern.
Measurement is started by pressing the Start! Button.
(It is measured up to the moment the needle of the meter is full) measurement is performed for 5 seconds
For the largest sound is measured in five seconds, the level is determined.