Sound Meter

Smart Tools co.

Contains ads

About this app

Sound Meter is in the 4th set of the Smart Tools collection.

Have you ever suffered from the noise of the neighbors?
SPL(sound pressure level) meter app uses your embedded microphone to measure noise volume in decibels(db), and shows a reference.

REMEMBER! Most smartphone microphones are aligned to human voice (300-3400Hz, 40-60dB). Voice calls do not require high-performance microphones.
Therefore the maximum value is LIMITED by manufacturers, and very loud sound(100+ dB) cannot be recognized. Moto G4 (max.94), Galaxy S6 (85dB), Nexus 5 (82dB) ...

You can easily check if my voice is loud in a lecture or if the TV volume I turned on is not too loud.
See 6th images. I calibrated major Android devices with an actual sound meter (dBA). You can trust the result in routine-noise levels (40-70dB). Please use it as an auxiliary tool.

* Main features:
- Upside down mode
- Level notification
- Line-chart duration
- Material design


* Pro version added features:
- No ads
- Vibrometer
- Statistic menu
- CSV file exporting

* Do you want more tools?
download [Smart Meter Pro] and [Smart Tools] package.

For more information, watch YouTube and visit the blog. Thank you.

Ratings and reviews

I found this app, and installed it to see what noise level my neighbors have been sending my way. 7 months and I had no way to stop them until now. Most of last night was between 76 and 81 decibels. Our County has a quiet ordinance and now I can prove the noise level. I took screen pics of the levels. This seems simple, easy to use & highly advised for Android phone. I did not realize the damage sound does to our bodies, but I sure do now.

I just now tried a bunch of these, looking for a meter app to help find the correct level that audio should be mixed at, for my recording studio. Sure, I'll calibrate it with an actual meter when I'm finished with renovations but this app is pretty close, if it's not spot on. All the other ones I tried (started from the highest rating down) were way off. They were still only reading 73dB when it was dangerously loud and 43dB when the only noise in the room was a "silent" computer fan.

It seems to give accurate results although I have assessed this from guidelines as to typical noise levels rather than any comparisons with professional meters. I assume the results are linear sound pressure rather than A weighted. It is interesting and it makes me more aware of problematic sources of noise that might endanger hearing.

What's new

- v1.7.20 : More models are calibrated
- v1.7.19 : Support for Android 14