Acoustic Facts at App Store analyse

App power index: 110 (based on ranks around App Stores today)
Utilities
Developer: Acoustic Facts
Price: 0 free
Current version: 1.3, last update: 1 year ago
First release : 20 Jul 2017
App size: 86.07 Mb
4.0 ( 240 ratings )
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Estimation application downloads and cost

> 2.42k
Monthly downloads
~ $ 990
Estimation App Cost


This app turns your iPhone into a high-quality measurement equipment for reverberation time measurements. Reverberation time is a measure of how long a sound persists in a room after the sound is turned off, i e a measure of the room echo.

The techniques and algorithms in this app follow the international measurement standard ISO 3382-2 and measures reverberation times in the octave bands between 125 Hz and 4 kHz, which are the most common frequency bands used for most rooms. The algorithms are validated against the laboratory standard ISO 354 for best accuracy. Any impulsive sound can be used as source, e g a handclap, a dropped book. For best results use the specially designed impulsive source provided by Acoustic Facts (see our website http://acousticfacts.com).

The measured values can be used as input in the room acoustics web tool that can be found at http://acousticfacts.com. At the site there are ample products that are validated and that can be used to modify the reverberation time.
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Available in countries
Country Price
Canada 69.99 CAD
China 328 CNY
France 59.99 EUR
Germany 59.99 EUR
Italy 59.99 EUR
Netherlands 59.99 EUR
Portugal 59.99 EUR
Spain 59.99 EUR
UK 49.99 GBP
India 4999 INR
Japan 7000 JPY
Korea, Republic Of 66000 KRW
Poland 299.99 PLN
Russia 4490 RUB
Turkey 1499.99 TRY
USA 49.99 USD
Korea, Republic Of 54.99 USD
Ukraine 59.99 USD
Available for devices
iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX, iPad75, iPad76, iPhoneXS, iPhoneXSMax, iPhoneXR, iPad812, iPad834, iPad856, iPad878, Watch4, iPadMini5, iPadMini5Cellular, iPadAir3, iPadAir3Cellular, iPodTouchSeventhGen, iPhone11, iPhone11Pro, Watch5, iPadSeventhGen, iPadSeventhGenCellular, iPhone11ProMax, iPhoneSESecondGen, iPadProSecondGen, iPadProSecondGenCellular, iPadProFourthGen, iPadProFourthGenCellular,