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Decibel Meter Pro

By Performance Audio

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Decibel Meter Pro is the hottest, most feature packed decibel meter on iTunes! With killer graphics optimized for the iPhone, the Retina display and the iPad! Decibel Meter Pro has been in the Top Utilities on iTunes since it's release! Download your copy today and find out why!

★ Decibel Meter Pro is TUAW's Daily iPad App July 5th, 2011! ★
"At US$0.99, Decibel Meter Pro is a bargain. It's a great tool for anyone who is concerned about noise levels or who needs a tool for measuring just how loud the neighbor's barking dog is."

Useful, beautiful and lots of fun, Decibel Meter Pro is a must have app for your device! Simply launch the app and start reading the sound levels that surround you every day! Want to know just how loud this club is? Decibel Meter Pro can help! Just how loud is this lecture anyhow? Decibel Meter Pro can help! How good is the sound isolation in this room? Decibel Meter Pro can help! Download Decibel Meter Pro and measure the sounds around you right now!

Decibel Meter Pro is also included in our flagship app called Audio Tool. It is a complete bundle of handy audio apps, which can also be found on iTunes.

The iPhone's built in microphone is sensitive from 0 to approximately 110 decibels.
Why aren't you getting a 0 decibel reading in a quiet room? A decibel is an actual measurement of sound pressure and aside from a vacuum chamber or out in space 0 dB is not really possible to read. An average quiet room will be in the 40-50 dB range.

★ NEW! Support for the new iPad Retina Display
★ NEW! A, B, C and Z (unweighted) frequency weightings!
★ NEW! Sensitivity Fader! Be as sensitive as you've always wanted to be!
★ NEW! Liquid rotating interface!
✓ Hold your device with the mic aimed at the source. The display will automatically rotate upside down for you.
✓ Start or stop Decibel Meter Pro any time. The last measurements are saved and displayed.
✓ Easy to read interface with amazing graphics optimized for the new Retina display!
✓ Measure the sound levels around you, with ease!
✓ Large digital and analog readouts.
✓ Average, Peak and Max level displays.
✓ Reset the Max level readout by tapping on it's digital readout.
✓ Calibrate the measurements plus or minus 10 decibels.
✓ Decide whether or not you want your device to sleep while metering.
✓ Sound effects that can be turned on or off.
✓ Reset settings to defaults.
✓ Handy decibel reference chart.

What's New in Version 2.0.5

✓ Minor Interface Improvements

From version 2.0.4
✓ Stability Improvements

From version 2.0.3
✓ Corrected a problem introduced in version 2.0.2 which caused the start/stop button to be the wrong size on iPad.

From version 2.0.2
✓ Primarily a bug fix and stability update. Thank you for your feedback!
✓ Corrected a problem that could result in unusually large numbers or a NAN reading.
✓ Corrected the Sensitivity setting based on users feedback, this is now based on time, you can select from 0.05 to 0.5 seconds for sample size.
✓ Restored the Decibel Chart to the About section.
✓ Minor UI tweaks


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Customer Reviews


I had same problem with frozen dials until I updated to ios5. App developers appear incapable these days of writing programs able to run on several platforms. I sympathise with those wish to stay with ios4. Apple believes it is advancing when the introduction of Lion version eliminates many programs(PC Power?). Classic worked fine when System 9 was replaced with OS X but Classic was soon dropped after after a few new versions. LETS HAVE BACKWARDS COMPATABLE OPERATING SYSTEMS! After all, most new versions only give us even more ways of doing the same thing and making it look different!

Sorry about the rant I, do like the App and it can be calibrated with hopefully some improvement in accuracy.


Obviously not 100% accurate but an interesting little app that gives reasonable results.

Sterling work

Top little app; has come in handy on many occasions

Decibel Meter Pro
View In iTunes
This app is designed for both iPhone and iPad
  • £0.79
  • Category: Utilities
  • Updated:
  • Version: 2.0.5
  • Size: 19.8 MB
  • Languages: English, French, German, Italian, Japanese, Korean, Polish, Russian, Spanish
  • Developer:

Compatibility: Requires iOS 4.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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