dB Sound Meter

Real sound level meter for your smartphone !

This application can be used as a decibel meter or sound level meter to gain the loudness of the environment.

<b>Main features:</b>

• It measures environmental noise level

• Gauge for indicate current dB sound level

• Line chart for monitoring SPL changing

• Can calibrate the decibel values for each devices

• dB Sound meter has fast response

For calibration your device you have to find noiseless place at home (average ambient noise level is 30 dB ) and set value for correction in the calibration menu.

NOTE: This sound level meter uses built-in microphone to measure ambient noise level, so the app is not as reliable as a professional noise meter, but it gives approximate values. The maximum values can be limited by the device (often limit is in a range 80 dB - 90 dB ). Very loud sounds may not be recognized.

Some devices are equipped with AGC (Automatic Gain Control). This system causes additional sound pressure level measurement error.

<b>Levels of Noise In decibels (dB) :</b>

140 dB - gun shots, fireworks

130 dB - jackhammers, percussion section at symphony

120 dB - jet planes taking off

110 dB - power saw, car horns

100 dB - school dance, boom box

90 dB - power tools

80 dB - Alarm clocks

70 dB - traffic, vacuums

60 dB - normal conversation, dishwasher

50 dB - moderate rainfall

40 dB - quiet residential area

30 dB - whisper

20 dB - leaves rusting

10 dB – breathing</br></br></br></br></br></br></br></br></br></br></br></br></br></br>

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