Download deciBel Pro apk Varies with device free for Android smartphone

3 Aug
deciBel Pro

Posted by BSB Mobile in Tools | Aug. 3, 2015 | 9 Comments

Apk file size: 507.0 KB

deciBel Pro 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 high precision A, B, C and Z weighting filters 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.

### Please calibrate before the first use! ###


- true A, B, C and Z Weighting (ANSI S1.4)
- numeric dB, dBmin and dBmax display
- simple calibration interface
- Automatic Calibration function (no professional SPL meter required for reasonable startup accuracy)
- sliding sound level versus time chart
- sliding max, min and average soud level versus time chart
- accumulated sound level exposition chart (dosimeter)
- saves chart screenshots 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

Whats new

    Lollipop compatibility issues fixed
    Bug fixes

BSB Mobile part of our Tools and have average installs from 1000 to 5000. Last Update Aug. 3, 2015. Google play rating is 87.3333. Current verison is Varies with device. Actual size 507.0 KB.

Download decibel-pro.apk 507.0 KB


Keith Wigmore

A google User Great tool, though the kids maxed it out at 99.9.! Though cant find the calibration menu.?? Will have to test it against my audiologist prof sound meter

A Google User

Good accuracy After calibrating the accuracy is quite good. Whish it could record over long time and save to CSV. Also landscape mode would be nice.

A Google User

Excellent Very good accuracy for now, I am going to give 5 stars after checking with a professional SPL meter.

A Google User

Phone locks up after first use.

A Google User

Pretty good. Good interface , very good calibration features and user help information. Main limitation is your hardware.

A Google User

Cool! I like ads free version. This is better than free version.

A Google User

Great app! Precise and adds free!

Charles Zorn

Top! Accurate and well designed. Visualization great!


deciBel Pro Seems to be the most accurate one available. Hope next update lets you send screenshots to emails.

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