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dB Volume

With dB Volume you turn your iPhone into a Sound Pressure Level (SPL) Meter. You can choose between the industry standard weighting curves and response times.
Category Price Seller Device
Music Free DSP Mobile UG (haftungsbeschraenkt) iPhone, iPad, iPod

Use dB Volume for measuring environmental noises - it offers now Leq measurement!

dB Volume features:
- response time modes: impulse, slow, fast
- weighting functions: A B C Z (unweighted)
- peak hold function
- Leq measurement

We calibrated dB Volume as carefully as possible for all available devices. But: keep in mind, that due to manufacturing tolerances this calibration does not necessarily apply to your device – it’s still an iPhone, iPod touch or iPad and not a calibrated measuring instrument!

Reviews

Easy simple big meter
axedog

Easy simple big meter. Goes up and down with change in volume, useful in gauging volume on any number of things. In my quiet living room meter reading sits/starts at about 40, not sure this is accurate starting point but I can gauge louder spikes in various sounds from there. Plus heck its free!


Used to be great. Not so much anymore
somebodybrokemyhalo

This used to be a great little app. The last update killed this thing. I get no audio and no indication of a signal. Found another app since you've killed this this off... Don't waste your time.


Works, but could be more accurate.
MEEKO {D187}

The A, B, and C weightings are off. I am convinced that the meter is off just a tad bit. I use this on my iPhone 5S with iOS 10. Today I'm writing on March 29, 2017. So yes, it works but with some little improvements this app would be phenomenal.


Optimized for iOS 9.3?
hoff_10

Ummm… You all are aware that we are on like iOS 11 point something now right?


Great
Add me plzzz 4rtnz

I go to tons of car shows and I work in car audio and I use this every day, people wanna know what db there car will hit things like that. Fast works great! And i tested to se if it would read the same as my term lab and it's dead on!


Gas compressor tech
Fieldtech

Working around natural gas compressor stations requires to be aware of the SPL to select the proper noise protection. Although this application isn't a dedicated and OSHA approved, it serves as a good training tool. We have been comparing its readings against the units used by the Safety Department and found no big difference on the readings. Works OK!


Tries to Force In-App Upgrade
O. Pinion

Free version seemed to work okay for a while then it defaulted to an upgrade screen that wants to charge $9.95 for an improved version. Couldn't find a way to bypass upgrade screen so I uninstalled it.


Good db meter
Praise Band

This meter held a close tolerance to our meter from RadioShack. Others did not. Get this one. God Bless


Works good BUT...
IceColdCecil

App works good but anytime you hold your device in a position other than vertical, an annoying full page ad comes up for some other app. So you can not aim the 'sound hole' at the source of the noise and get a reading.


Best Free iPhone SL Meter
nyimht

I've tried almost every Free Sound Level Meter and this one was the most accurate when compared to my EXTECH Digital Sound Level Meter. I normally keep it on Slow response and A Weight. Although you're getting readings from the built-in iPhone mic, it is very useful for small situations (i.e. home monitor setup.)


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