★ Measure the sound level with Sound Meter application! ★
★ It uses your built-in microphone and shows a reference. We had calibrated many android devices with the actual sound level meter with dB.
★ You have to know that the built-in microphones were aligned to human voice (300-3400Hz, 40-60dB). Therefore the maximum values are limited by the hardware limitation, and very loud sound (100+ db) cannot be recognized.
★ Remember that it's only a device for fun and please use it as an auxiliary tool.
★ Levels of Noise In decibels (dB) according to American Academy of audiology:
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
★ If you have any problems, contact with us:
mobile@netigen.pl