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iPhoneAppsPlus->Medical->dB Meter

dB Meter

dB Meter

Last changed: Dec 29, 2009

Category: Medical
HomepageDarren Gates
Rating: rating 0(0)
Version: 1.0
Size: 0.3 MB

Price:  $0.99 

Description:

dB Meter provides a simple way to measure audio volumes in your environment. The app shows the approximate dB (decibel) level, also known as Sound Pressure Level (SPL).
Most people have no idea how loud a 90 dB sound is, or even what threshold they should be avoiding for their own safety. This app gives you an estimation of the environmental sound levels so that you can move to safety when the volume level is too high.
We've included some useful statistics about the measured volumes, including Average, Peak, Peak Hold, current dB level, maximum, and minimum values. These can all be quickly reset by tapping the "tap to reset" button, or they can be "frozen" by tapping Stop.
If you wish to use an external microphone, or if you find that the dB reading is a bit off when compared with traditional analog SPL meters, you can calibrate the app using the Settings screen. For example, a hyper-sensitive microphone might give you a dB value that is too high, so you'd add a negative Trim value to the dB reading to adjust. Calibration settings ("Trim") are saved internally in the app.
To adjust the calibration, tap the "Calibration" button, and then adjust the value based on whether you are using an internal microphone (iPhone users) or an external microphone (iPod Touch users).
Please note that this application requires an external microphone for use with the iPod Touch.
An approximate guide to decibel level safety:
150-160 = Eardrum rupture
140 = Aircraft carrier deck.
130 = Jet take-off (100 meters), gun blast at close range.
120 = Human pain threshold, loud rock concert.
110 = Serious hearing damage if sustained for more than 1 hour.
100 = Serious hearing damage if sustained for more than 8 hours.
90 = Likely hearing damage if sustained for more than 8 hours.
80 = Potential but unlikely hearing damage if sustained for more than 8 hours.
70 = Just annoying, but probably safe.
60 = Typical conversational volume.
50 = A quiet, library conversation.
40 = A whisper.
30 = Barely audible sound.
20 = Threshold of human hearing.

dB Meter - 0dB Meter - 1dB Meter - 2dB Meter - 3

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Worldwide rank of dB Meter in Medical
Reported by http://www.iPhoneAppsPlus.com Apr 19 2014 03:10:06 View Image
CountryTop PaidTop Grossing
    Denmark281-
    Deutschland279-
    Finland7629
    Italia-172
    Lebanon192-
    Luxembourg225-
    Nederland13187
    Norway133116
    Osterreich-224
    Slovenia290-
    South Africa6121
    Sweden14382
    Taiwan-193


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