What's New

-Updated for latest iOS devices and new iOS versions
-Bug fixes and stability improvements

App Description

SPL Meter is a professional-grade sound level meter, also known as a decibel or dB meter, for your iPhone, iPad or iPod touch.

Modeled after a traditional analog SPL meter, we have faithfully reproduced all the characteristics and qualities found in those meters, including the ballistics, ranges, filters, and decay rates.

Under the hood we have advanced DSP-based algorithms that meet or exceed ANSI / IEC Type 1 standards. And starting with iOS 6, we can disable the mic filters and limiters, to get the real world performance of a hand-held SPL meter.

And now, upgrade SPL Meter with iTestMic, our pro-grade test & measurement mic, made specifically for iOS devices. Using iTestMic with SPL Meter, you get a calibrated, accurate SPL Meter, that meets industry standards for Type 2 performance. See our website for more information.

But don't compare us to a Radio Shack meter, ours is much more accurate!

We have also included a digital LCD display, as shown in the image, to make this the best SPL meter available for iPhone or iPad. And this is something that the old analog meters never had!

The screen will flip when you flip the phone over, so that you can point the iPhone mic directly at the sound source. (iPhone X does not support upside down mode)

SPL Meter is a universal app -- buy once, and use on all of your iOS devices.

SPL Meter is built by the same team that created the other great professional audio and acoustics apps on the store, Studio Six Digital. Built on the engine of our more expensive "SPL" app, SPL Meter's filters and decay rates meet or exceed ANSI type 1. This app is not a toy or a game.

SPL Meter is the one audio app that everyone who works in audio must have on their phone! Not only have we made the best one, but we've priced it so you can't afford not to get it.

*** FEATURES:

FILTERS -- A and C weighting filters are provided.

DECAY -- Choose ANSI Fast or Slow.

RANGES -- 40dB to 120dB in 9 ranges.

CALIBRATION -- Comes pre-calibrated for the typical iPhone or iPad built-in and headset mic, but you can adjust the calibration if you have a professional, calibrated meter to compare it to. Accesses our cloud-based iOS device calibration database, which we updates as new devices are released.

INTERNAL / EXTERNAL MIC -- Select Internal to activate the included compensation filter, which is designed to flatten the frequency response of the built-in or headset mic. External will work with our iPhone Measurement Mic, to be released later this summer. See our website for more details.

SPL Meter is bargain-priced to make it easy for anyone to check out one of our professional, accurate apps. Studio Six Digital is dedicated to making the iPhone and Touch a professional audio and acoustics test device.

Check out our full line of professional-grade audio and acoustics apps: SPL, the professional digital iPhone sound level meter, SPL Graph, for recording SPL over time, RTA, a 1/3 octave real-time analyzer, FFT, for detailed acoustic analysis, ETC, the energy-time curve function, RT60, for automated octave-band decay time measurement, Speaker Pop, to test speaker polarity, and Generator, the iPhone signal generator.

Also, if you are looking for more great acoustical and audio test apps, have a look at AudioTools, our premier app for audio professionals.

iPhone Screenshots

(click to enlarge)

SPL Meter screenshot 1 SPL Meter screenshot 2 SPL Meter screenshot 3 SPL Meter screenshot 4

iPad Screenshots

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SPL Meter screenshot 5 SPL Meter screenshot 6 SPL Meter screenshot 7

App Changes

  • August 06, 2011 New version 3.1
  • October 07, 2011 New version 5.0
  • October 20, 2011 New version 5.1
  • March 03, 2012 New version 5.2
  • September 19, 2012 New version 6.0
  • October 06, 2012 New version 6.1
  • November 18, 2012 New version 6.2
  • February 03, 2013 New version 6.3
  • February 21, 2013 New version 6.4
  • May 09, 2013 New version 6.5
  • June 06, 2013 New version 6.6
  • November 14, 2013 New version 6.7
  • February 19, 2014 New version 6.8
  • June 19, 2014 New version 6.9
  • October 02, 2014 New version 7.0
  • October 12, 2014 New version 7.0.1
  • February 06, 2015 New version 7.1
  • May 14, 2015 New version 7.2
  • November 10, 2015 New version 7.3
  • November 25, 2015 New version 7.4
  • February 19, 2016 New version 7.5
  • February 19, 2016 New version 7.5
  • July 07, 2016 New version 7.8
  • November 07, 2016 New version 7.9
  • November 22, 2016 New version 8.0
  • November 25, 2016 Price decrease: $0.99 -> FREE!
  • December 03, 2016 New version 9.0
  • December 03, 2016 Price increase: FREE! -> $0.99
  • June 14, 2019 New version 9.7
  • August 16, 2019 New version 9.8
  • October 15, 2019 New version 9.9
  • October 22, 2020 New version 10.0
  • August 06, 2021 New version 10.2
  • September 15, 2023 New version 11.1
  • October 20, 2023 New version 11.2