deciBel
Add to favorites Rating: 3.5 (2,719) Cost: Free Downloads: 500,000 - 1,000,000
deciBel is the result of a serious effort to make an Android based SPL meter as close to a professional-grade device as the phone hardware limitations allow.
It uses a Fast Fourier Transform algorithm to implement a high precision A weighting filter and sophisticated digital signal processing techniques to achieve the best possible SPL readings out of your Android phone or tablet.
It displays the current, maximum and minimum values in decibels, and generates 3 kinds of sound pressure level versus time charts. The display can be turned upside down to allow pointing the mic at the sound source.
deciBel is supported by ads.
### Please calibrate before the first use! ###
Features:
- true A-Weighting (ANSI S1.4)
- simple calibration interface
- numeric dB, dBmin and dBmax display
- sliding sound level versus time chart
- sliding max, min and average soud level versus time chart
- accumulated sound level exposition chart (dosimeter)
- saves chart screen shots to the SD card
- dominant frequency display
- 22Khz bandwidth at the input of the weighting filter
- 1024 point real time FFT and digital sound processing
- movable to the SD card
Andy - 2011-06-21
I use dB meters regularly so know what to expect. Calibration great on my HTC desire. Pretty accurate. To restart hold down on top bit of screen.
nate - 2010-09-28
Needs to be calibrated easier and needs to be able to go over 160db would be nice dont think its that accurate tho or it dont pick up the subwoofers
Andro - 2011-07-31
Fails to report any spl change at all on all 3 devices I own: tmobile pulse, htc legend, zte blade.
Wavesonics - 2011-02-10
Nice app, would really like to be able to save data out as more than just screenshots though, csv file of all the data points or something would rock
ben - 2011-04-19
Hardware limitations make these apps too inaccurate to be of any use. Your phone is not capable of " hearing" like a real Decibel meter can.
John - 2011-03-26
Theodore - 2011-04-10
Choppy and slow on mytouch 4g. It seems to take samples rather then continuous measuring. Its frustrating and from what I can tell, useless.
Robert - 2010-10-22
Nice app, works well. Should have a way to see exact dB in graph history
Snave - 2011-09-30
Installed app, doesn't respond to any sound. Galaxy Tab 7"
jonathan - 2011-02-20
Works great on my R2D2. Just a little to sensitive to frequecies we cannot hear. Quite room fluctuated from 19dB to 21dB
Filed Under: Tools
