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SPL Meter artworkSPL Meter
Studio Six Digital

Genre:Music
Price: $0.99
Release Date: March 26, 2009

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

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

*** IMPORTANT NOTE ***

If you are planning on buying iAudioInterface, you should consider buying our AudioTools suite of apps instead of this app. See our website for more info.

*** Important Note for 3Gs Owners ****

The 3Gs has a much steeper low-frequency roll-off filter than previous models. This release detects the 3Gs model and corrects this as much as possible, given the extreme loss of low frequencies. See our web site for more information.

We have also included a digital LCD display, as shown in the image, to make this the best SPL meter on the store. 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.

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 built-in and headset mic, but you can adjust the cal if you have a professional, calibrated meter to compare it to.

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.

SPL works best on iPhone 3G, but can also work on second generation iPod Touch if an external mic is used.

NOTE: If you have a first gen iPod Touch, you will have to use a dock-connector microphone. We have enabled sales to this device, but SPL Meter will not work without an external dock connector mic.

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 a great range of high-quality, professional, audio test equipment, check out www.sencore.com. They sell the current versions of the Audio Toolbox, as the SoundPro line of audio test equipment.

© Andrew Smith

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