Decibel-O-Meter

Waiting for more settings / options... Great for checking the noise level of my motorcycle exhaust system. . Maybe introduce a peak hold option on the needle so I can tell the highest sound level achieved during a test like a motorcycle dyno run... Thanks

As far as I can determine, there is absolutely no means of calibration whatsoever. It's completely off, and can be off by as much as 30dB in my own testing comparing its results to a real decibel meter sitting right next to my phone. The decibel scale is a logarithmic scale, so being off by more than 6dB is unacceptable on its own. Unfortunately, I can't just mentally add 30dB because it varies depending on the level just how far off it actually is at a given time. PS. If you're listening to music at 125db or higher, you don't need this thing to go higher, you need to turn it down. Even the loudest rock concerts are around 115dB and you should start to feel physical pain at 125dB. The fact that someone says they need 140dB is proof of how far off this thing is because at 140dB your hearing causes permanent hearing damage almost immediately. (It's synonymous to standing right inside a running jet engine.) If you're actually listening at these levels and it's not just completely detecting the SPL incorrectly, you NEED to turn that music down NOW because you are going to permanently physically damage your ears in a way that can't be fixed by any doctor.

Pretty basic but works well and looks good. Not sure I can complain about a free app that does what it says it does. Well done.

I love the simplicity, all of the other decibel meters I've tried are to complicated for me to understand. This meter gives out a simple reading without having to "calibrate" it.

Amazing app,interface is just too good,only worry is that its not as accurate as it is supposed to be,and if you could take it up to 140 decibels it would be too good.hope you reply

30 to 40 in a sound proof room. A Harley with no baffles, only 106. Should read around 140. No way to calibrate either. Not worth your time

I don't have dedicated device to check accuracy of this program but comparing it with several others l find it most reasonable

Haven't checked it against a calibrated standard yet, but it is simple and it works on my Droid 4

Hi. Yes very basic, but one of the few ones that works with my Eken 7" tablet :) Suggestions: 1- display values can change very fast. An option to display more slowly (every 1s?) the average level on this period. 2- A "run" button and display of Min/Max/Avg since the run. PS: My tablet doesn't display the scale numbers 0-120 as on your images @Robert & Schalk: Phones' manufacturers limits high sound capacities at 100 dB or less. Moto Droid(max.100), Galaxy S3(81dB), Galaxy Note(91dB), Galaxy S2(98dB)... This apps - as others - can only display the volume it receives, after filtering by the phone.

Does what it should without all those prying permissions. Wish all apps were like this. Thank you! And looks good, too..

I love this ap! It is realy accurate! Of course, it has no info about noise level, but is calibrated and ready to use and offer real values, in real time. Great job! Thanks

Thanks for this app, analog looks so much better than digital design!

It only goes up to 120.0 dB - It should go up to 140.0 dB. Also, add a comparison list comparing e.g. 140.0 dB to e.g. a rock concert.

If only it went up to at least 140.0 dB...

ON my phone everything is 30 to 35 dB unless I yell into it

graduation values missing though. asus transformer

Can not calibrate inaccurate for note 3

Really pretty no way is it accurate

My music only can be measured up to 125 but its a lot louder than that but this app was tha better one out of 9 other free ones and two paid ones i wasted money on

I love this app try it for your phone. It works.

simple app but interesting..

It works

You are never going to get absolute accuracy with this sort of thing. However, when comparison tested against my dedicated (expensive) noise meter using a HTC Desire Z, Decibel-O-Meter gave quite similar results. Good enough for most purposes requiring a general indication of noise level. To expect professional results from this freebie would be a bit like someone checking out the wiring in a NASA space probe with a Halfords multimeter!

Looks good but sits on around 50db in a quiet room & does not display a peak db long enough to view it which is incorrect anyway. USELESS

Htc EVO 4G - dosent work well. went to a concert & it maxed out around 80 db when I knew out was way louder.

It would be nice if you could set how long sceen stays active and if you could chang screen back ground color we're neddle is.

first app like it I found to work with my Casio commando. No options, etc. I think I'll keep looking

Piece of crap. Wont even start. Totally freezes my phone up, galaxy s

Works great. Although a graph with respect to time would be even better. I would love to share that graph with DEP. HTC Sensation

Nice looking app, works fine on DesireZ/G2 with official Ging ROM. No graphs. Big downer is lack of calibration of any kind, even setting base/quiet!