Decibel X:dB Sound Level Meter Reviews – Page 36
5/5 rating based on 414 reviews. Read all reviews for Decibel X:dB Sound Level Meter for iPhone.
Decibel X:dB Sound Level Meter is free iOS app published by Thanh Dinh
Excellent
Kfab12
The app is easy to use and understand. Comparing it to the decibel meter I have from Radio Shack they are very close. It’s like comparing one temp thermometer to another, the usually don’t match but one degree or very close is good enough and that was the same when holding the two decibel meters side by side. Spend the $1.99 and get rid of those ads. I consider this decibel meter accurate (or in the ballpark) and dependable.
Update problem
Weld-nut
New version not working with IOS 11.1.2. App immediately crashes/no starting.
Just spend money on a different app
chantalapple
The decibel meter works fine but the fft meter is not fully accurate. It miss a lot of frequencies that are present. The app crashes if you try to use it sideways
Intrusive ads/privacy policy, inaccurate measurements
WarwickNAL
Standard warning: Users need to read the privacy policy, they collect tremendous amounts of data about users for advertising purposes. This applies to every app, not just this one. First of all, the most important measure of decibels is the A-weighting scale as it reflects how the ear actually processes sounds. The developers cleverly only offer the A-Weighting scale with the $4.99 upgrade. Tested Decibel X using white noise against a type 1 sound level meter in an anechoic chamber. The AVG readings varied by as much as +/- 8 dBA. Dose and TWA calculations are completely inaccurate, Dose should read 100% at 85 dBA (or 90 dBA if you're using OSHA PEL), 50% at 82 dBA, 25% at 79 dBA and so on...Makes me wonder if the developers understand basic acoustics? There are also errors on the dosimeter screen. OSHA uses 5-dB exchange rate and 90 dB threshold to calculate PEL and 80 dB to calculate action level, while NIOSH uses 3-dB exchange rate to calculate the REL and It is obvious the developers copied this screen from the NIOSH Sound Level Meter app without understanding the implications for adding such parameters - using the wrong exchange rate and thresholds can produce major errors. NIOSH conducted a study on accuracy of sound measurement apps and published results in peer-reviewed articles. Users should consult those publications for selecting most appropriate app, only 4 apps (out of total of 192 iOS and Android apps) met NIOSH criteria.
Where is the gauge?
Catzmama
I love this app, but the latest update seems to have removed the round gauge! I liked that measuring tool the best!
Like Herpes
Ron VI
So I downloaded this app try it, the free version. I did not like it I tried to remove it, I cannot remove it. I can only share it with someone. Unless the developer will tell me how to remove it I will have to purchase it and then dispute the charge with Apple. What kind of crap is this?
App crashes in FFT mode
Baughsome
When using FFT, app crashes within a few seconds. If you rotate the phone to landscape, the app crashes immediately. Very glad I tried this free version first before spending money on this. iOS 10.3.3