DiGiPro SPL Spectrum Analyzer

DiGiPro SPL Spectrum Analyzer

500 - 1,000 downloads

Add this app to your lists
This application brings the functionalities of a Sound Level Meter (SLM) and a Real Time Spectrum Analyzer (RTA) to your phone.

Analyze the ambient (background) noise and the traffic noise (TNI)!

This app has much more features (+) than the basic edition (no ads).

>>SLM main features:
• 3 measuring modes (Dynamic, Average, Cumulative)
+ 3 weighting filter curves: dBA, dBB, dBC according to DIN-IEC 651
• simple calibration settings
• sound level versus time chart
• current dB value, avg (Leq), min and max display
• audio threshold trigger
+ sound level distribution chart
+ accumulated sound level chart
+ current value, L90, L50 and L10 values display
+ TNI (Traffic Noise index) display
+ exporting of measures, chart data (CSV) and screenshot (PNG)
• tested with samsung galaxy S S2 S3 S4
• sharing of text values and screen bmp

>>RTA main features:
+ sound level versus linear frequency chart
+ sound level versus logarithmic frequency chart (HzLog)
+ 5 spectrum measuring modes (dynamic, average, peak, avg/exp smoothing)
+ Microphone Equalizer (Internal or External), Octave bands
+ 2 spectrum views (Panel & Chart, Landscape Chart)
+ tap or swipe to select the proper frequency step
+ long press to zoom
+ 4 values versus selected frequency component displayed (current, mean, max, min)
+ 20hz/22kHz band, 44100 Hz sampling rate
+ adjustable FFT size (up to 8192, about 5 Hz accuracy) , adjustable FPS (up to 20)
+ exporting of measures/chart data (CSV) and screenshot (PNG)

>>Data collection
The application relies on the mobile microphone signal. To achieve the best results consider the following:
1) Easy Calibration (only the first time): Some mobiles are automatically calibrated in the first installation phase. For details see the calibration section of the user manual.
2) keep your fingers away from the mobile microphone
3) silence your phone to avoid any ring tones, vibrations and other sounds
4) orient the phone microphone toward the noise source keeping the correct distance
5) click on the function buttons

1) Wrong SPL calibration: See the Calibration section and type the right calibration values
2) No signals detected below 20dB or over 100dB: most smart phone microphones do not work under 20 dB or over 100 dB
3) Signal attenuation near band limits: the mobile mic may attenuate frequencies <100 Hz and >15000 Hz

Read the embedded User Guide: for any info or troubleshooting you can contact us at support@gaiacons.com.

Tags: spectrum analyzer, spl analyzer, check current frequency band, slm and a spectrum analyzer, free spl measurement in samsung spectrum analyser, real time audio spectrum analyzer sound level meter rta, db meter with spectrum, analyzer sound di, free rta analyzer.

Recently changed in this version

- new Microphone Equalizer
- SLM: new Chart Curve settings
- RTA: new Chart mode settings
- new User Guide
- Bugs removal

Comments and ratings for DiGiPro SPL Spectrum Analyzer
  • (56 stars)

    by Julio Amoedo on 28/10/2014

    No solo indica el SPL en tiempo real tambien provee la distribución estadistica de la fuente.

  • (56 stars)

    by Tom Neumeyer on 27/08/2014

    Virtually equivalent to the unit I used to identify and limit noise as an engineer in manufacturing.