Octave: An RTA for the iPhone by Alex Wiltschko (Universal)
Released: Sep 12, 2010
Version: 1.3
Size: 2 MB
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Ranking - Music (iPhone)

Ranking - Music (iPad)

Octave: An RTA for the iPhone

Alex Wiltschko

[ This app is no longer available for download ]

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. You can have pro-quality sound analysis on your iOS device for tiny fraction of the cost!

See your sound in detail with up to 1/12th octave bands. 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).

What's new in version 1.3
The most requested feature is finished! Tap and hold to get an average spectrum of the sound around you. Real-time averaging!

- Saving average curves (some of the UI is finished, but I'm polishing the rest of the experience — it's not quite perfect).
- Pink noise generation
- Mic calibration

Our verdict: Ok
  • + Octave: An RTA for the iPhone is an ok, 3.5-star app.
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