Sound Level Meter (com.softdx.soundmeter) on Google Play
The noise measurement application that allows you to measure the actual dB and noise.This decibels of volume or decibel meter (dB meter), the noise meter, sound level meter (SPL meter).The noise of their surroundings is the sound level meter to measure how much.This shows that the referenced using your built-in microphone.You can measure the number of Android devices in dB and the actual sound level meter.You are the maximum value and the minimum value, starting the measurement noise, and can determine an average value.Features:───────* Fast dB response* Indicates the maximum / minimum / average values* Classic analog display* Graph Display* Horizontal / Vertical screen rotation* Use a microphone source* Tablet SupportEvery smartphone, you can have an error of measurement.You sound a maximum value of Android phones may vary from unit to 80 ~ 100dB.Use only memories of fun and auxiliary tools or equipment.