Sound Meter is an app to measure the decibels of the sounds around you with precision. Once you open the app, you can see the exact decibel level and a note on the approximate level of sound that it matches to give you some point of reference (loud music, a whisper, traffic sounds, etc.).
On the screen you'll also see a graphic representation of the decibel level over the last 30 seconds so you can see if the volume is increasing or decreasing. In addition, you can use the calibration button to make sure your Android is capturing and interpreting all the data accurately.
Sound Meter is a very useful app thanks to which you can see the decibel level of anything quickly and intuitively. In fact, the app interface is extremely easy to use.