OpeNoise

Arpa Piemonte

About this app

OpeNoise is a real-time noise level meter.

TECHNICAL SPECIFICATIONS:
- Real-time A-weighted sound pressure level measurement
- Minimum and maximum level
- Third octave and FFT analysis
- Data saving in text file
- Calibration
- Displaying measurements on a map
- Metadata compilation
- Sharing calibration and measurements with the OpeNoise community


TERM OF USE
This app is not intended for professional use, it does not necessarily guarantee an accurate noise measurement.
Since each device has a different response to noise, a comparison with a professional noise level meter in the measurement dynamic range is required.
The utilization of the app requires adequate technical knowledge and skill; an extemporary measurement might not be correct.
The calibrations and measurements sent to the OpeNoise community will be used for statistical purposes only and cannot be used in any way to verify compliance with legal limits.

CREDITS
Developers: Arpa Piemonte (Regional Agency for the Protection of the Environment of Piedmont - Italy - www.arpa.piemonte.it).
The code is open source under GNU v.2 license or later, the code is on GitHub: https://github.com/Arpapiemonte/

Ratings and reviews

Looks like someone took a very promising adaptation to sound measuring utilities. Simple clean looking with the correct controls. Mentions the need to compare with a professional device for calibration. If I had that why would I need this? So far I've not seen 2 apps that can give the same results, until then, no results are believable. 5 stars for common sense and good advice. Good for learning about sound inked a simple, no BS, working package! 🔊🎶💹☑️🆒🎙️🎯🏅👍👏👂 TY I'll test and return.

If "Save Lzeq 1/3 octaves levels" and "Save Lzmin 1/3 octaves levels" are checked before the start of the test. The recorded data will be very long. When you open the recorded txt file in the app, when a row of data is too long, I think it is best not to enable automatic word wrapping on the narrow screen of the mobile phone.

This app is brilliant, the best by far! It is the only one I have found that can display dB(A) and not just dB(Z). The wide choice of display options is greatly appreciated. I see a lot of people leaving negative reviews on here complaining about the need for calibration, ALL APPS NEED CALIBRATION if they claim otherwise, they are lying! My only wish is to be able to create custom LAeq times as seeing 3, 5, or 15min averages is very valuable! If you need a sound level app, this is it. 5 starts!

What’s new

- performance improvement and minibug resolution