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  • iOS App Store
  • Paid
  • Alex Wiltschko
  • Music, Utilities
Release Date: August 2010Last Update On: April 2012

Fourier is an FFT for the iPhone! See the frequencies in sound around you in a gorgeous and snappy iOS 4-optimized app. HOW TO USE: SINGLE TAP to see the peak frequency and musical note (you can...

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