【實用音樂app】LED Sound Meter|最夯免費app-綠色工廠好玩App

Check out ambient and/or specific sound levels using this fun graphical LED interface with adjustable levels for input volume and hold time, including the option to hold the meter at the peak level.

You can use the sliders to calibrate the phone to more accurate dB levels, as the numbers shown do not represent levels in decibels and this app is not pre-calibrated for specific phone models.