Octave is a real-time spectrum analyzer for the iPhone and iPod Touch that uses time-domain analysis, rather than FFT techniques. Octave follows strict ANSI certifications for sound analysis, found on multi-thousand dollar sound equipment. Quickly find out peak frequencies with a swipe to access the cursor, and tap-and-hold to freeze the audio with live spectrum averaging (it will turn blue, slow down, and look completely radical).

Octave: An RTA for the iPhone alternatives

AudioTools

AudioTools is a suite of professional-grade audio and acoustic analysis apps. Included in the price of this app is a great collection of professional tools SPL, RTA, FFT, Speaker Polarity Test, Generator, Audio Scope, CLF Viewer, and Recorder, and the framework to add more powerful modules as you need them. * THD+n (requires iAudioInterface)* Impedance Meter and Plot (requires iAudioInterface)*Phase Meter* Amplitude Sweep

  • rating 4.75
  • size 198 MB