Sound Level Meter app can measure environment noise in decibel values (dB). Sound Level Meter is a perfect free auxiliary tool to evaluate the noise around you and the best noise detector & real-time audio analyzer, a necessary noise detector app . ★ Features of Decibel Meter & Sound Level Meter - Evaluate current noise reference - Evaluate avg/max decibel values (dB) - Display decibel in gauge & graph - Measure sound level with record - Save noise recording, take decibel photo and record