【實用工具app】Sound Meter Free|最夯免費app

Sound Meter Feature is professional sound meter for your Android. Sound Meter is also known as sound level meter, decibel meter (dB meter),

REMEMBER!! The built-in microphones were aligned to human voice (300-3400Hz, 40-60dB)

140 dB - Gun shots, fireworks

130 dB - Jackhammers, Ambulance

120 dB - Jet planes taking off

110 dB - Concerts, Car horns

100 dB - Snowmobiles

90 dB - Power tools

80 dB - Alarm clocks

70 dB - Traffic, vacuums

60 dB - Normal conversation

50 dB - Moderate rainfall

40 dB - Quiet library

30 dB - Whisper

20 dB - Leaves rusting

10 dB – Breathing

免費玩Sound Meter Free APP玩免費

免費玩Sound Meter Free App

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