Spektroskop!

Add precision to your pocket Spektroskop is an easy-to-use yet powerful real-time spectrum analyzer, which takes accuracy seriously. Analyze, measure, compare and save sound spectra captured with the internal microphone or any other audio source connected to your iOS device. FEATURES + real-time, high accuracy FFT analysis from 20 Hz to 20 kHz + built-in microphone calibration for all iPhone and iPad models + built-in calibration and frequency equalization for the MicW i436 microphone+ built-in calibration and frequency equalization for the Microtech Gefell M372 microphone+ free field and diffuse field equalization for all internal iPhone microphones and MicW i436+ frequency weighting dB(A) and dB(C) + time weighting Fast, Slow and Average+ optional octave and third-octave band display + hold and compare function for up to four spectra + adjustable decay rate and averaging function + CSV data export to iCloud Drive, Dropbox, Numbers, etc.+ universal App for iPhone and iPad (limited support for iPod Touch)Visit http://SpektroskopApp.com for more detail