SPL is a professional-grade digital sound level meter (decibel meter) for your iPad, iPhone or iPod touch. It includes all of the modes, filters, and features that you would expect from a professional ANSI or IEC Sound Level Meter. All filters and averaging modes meet or exceed the criteria for ANSI Type 1 standards or better. SPL is created from the same team who brought you the Audio Toolbox and ATB Plus.
Store Results -- Uses the same powerful Save / Recall engine as our premier app, AudioTools. Allows storing GPS and time-stamped results, and exporting them to your computer.
You can also use SPL with our calibrated iPhone measurement mic, iTestMic, or iAudioInterface.
The screen flips if you turn the phone upside down, so that you can point the built-in iPhone mic directly at the sound source.
*** Modes: Slow, Fast, Impulse, Peak, and Leq.
*** Filters: A and C weighting, and 10 octave band filters.
*** Includes a resettable Max field to track the highest reading.
*** Includes a reference field (except in Leq mode) so that you can set a reference level and do seat-to-seat comparisons.
The SPL meter can be fully calibrated. It comes preset with the calibration for a typical iPad, iPhone, and iPod Touch. Most iOS devices will be within a few dB of this reading. If you have access, even temporarily, to a calibrated sound level meter, just use the calibration field on the settings scree to match the meter, and you will be accurately calibrated.
Also, see our other professional-grade audio apps: AudioTools, our premier suite of professional-caliber audio and acoustics test apps, Speaker Pop, to test speaker polarity, and RTA, a real-time analyzer for the iPhone.
And, we have a group of calibrated, accurate measurement microphones, including iTestMic,iTestMic2, and iAudioInterface2, that allows full professional results for Type 1 or Type 2 measurements.
This will allow measuring a range from approximately 30 dB SPL to 130 dB SPL. Each mic will include a calibration factor that you will enter into the SPL app for calibrated measurements. This mic will also work with Speaker Pop, our speaker polarity tester, FFT, RTA, ETC, and other acoustical measurement apps in our AudioTools app that is available now.
Also, see our iAudioInterface2 system, which supports any pro test and measurement mic.
Now includes an iPhone internal mic compensation filter, to cancel out the low-frequency roll-off present in the iPhone and other iOS devices.
See our other audio apps, including AudioTools.
Spl does not read correctly after updating to iOS 8
Needs an update
Joe2Who
This is a great application that does as advertised. We use it in a church setting to monitor levels for the congregation and work on mix levels.The application is not happy with iOS 4.1. Please update it.
SPL App hangs when iPhone rings, otherwise cool
BmP999
I emailed Mr. Smith and got an instant reply (gee I luv that). Did as he suggested, deleted and redownloaded and installed the SPL APP. Still same issue. I did some testing and if my iPhone (mine is a 3GS iOS4.3) rings, the SPL app dB readings get hung and all you can do is reboot the phone to get SPL working again. Since I have provided a repeatable senerio to aggevate this bug I have not heard back from Mr. Smith. All I can hope is he is working on it. Seems thousands (he claims) are not having trouble. Do they get calls when using it? Are they on iOS4.3?? The App says tested with iOS4.2.Otherwise, the app is nice to use and will help me in my job of measuring paging volumes over industrial noise levels.In the end, I can't give it 5 stars with a repeatable bug that hangs the SPL App and no email reply that says I'm working on it and BTW thanks for the info. So was my support issue of 1 in a 1000+ treated as junk or is it being looked at? There has to be a first I figure and not everyone will call for support, so there are likely more than just me. At $8.99 (higher than average cost) I'd expect proffesional support (don't feel the comment that I'm the only one and no email back is a professional support). All I can hope for is a patched version shortly.
-Bug fixes and stability improvements
Version 7.9
The developer, Andrew Smith, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Andrew Smith
Size
25.9 MB
Category
Music
Compatibility
Requires iOS 13.0 or later.
iPhone Requires iOS 13.0 or later.
iPad Requires iPadOS 13.0 or later.
iPod touch Requires iOS 13.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
Apple Vision Requires visionOS 1.0 or later.
Languages
English and 7 more
English, French, German, Japanese, Polish, Simplified Chinese, Spanish, Swedish
