Voice Level HD app for iPhone and iPad

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Voice Level HD provides a way to measure environmental sound levels, showing the approximate dB level.
Voice Level HD is the hottest, most feature packed Voice Level on iTunes!
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The app is based on the current calculations to determine the sound pressure level in dB.
Although we have tested the values with professional equipment, we cant ensure the
absolute correctness by international standard.

It also provides an approximate "decibel guide", so that you know what sound levels correspond to a health hazard.

FEATURES:

The iPhones built in microphone is sensitive from 0 to approximately 110 decibels.
Why arent you getting a 0 decibel reading in a quiet room?
A decibel is an actual measurement of sound pressure
and aside from a vacuum chamber or out in space 0 dB is not really possible to read.
An average quiet room will be in the 40-50 dB range.