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Octave: An RTA for the iPhone app for iPhone and iPad


4.0 ( 5920 ratings )
Utilities Music
Developer: Alex Wiltschko
4.99 USD
Current version: 1.3, last update: 7 years ago
First release : 12 Sep 2010
App size: 2.06 Mb

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).

Pros and cons of Octave: An RTA for the iPhone app for iPhone and iPad

Octave: An RTA for the iPhone app good for

I like the app very much, it is a real pro app with easy to use functions and interface. It would be 5 stars if I could play iPod music from the device. Please add this function. And if you can make the full screen mode where you can hide the db numbers and have only bars.
This app is Beautiful on the iPhone and Gorgeous on the iPad. Aside from the look, its very functional. I use while teaching Music Theory to emphasize a point and I can do it in real time! I dont have to carry around another device or hook up my Mac to show what I need to show. I havent used it much for pro-audio uses but as other reviewers have tested - it looks pretty good. Some very minor UI glitches but the developer is active and responds quickly to any support questions and development of features. The combination of a good app and a great developer makes this rare.
Ive used octave for a few gigs now and it is a great tool to have in my toolbox. Its pretty basic but for finding problem frequencies it works admirably. I would love to be able to calibrate for internal mic response but for the price this app is a steal compared to other RTAs.
Works great. Just wish next update allowed for control of dB scale and the graph would not slow down when selecting a frequency band.
Good app. Great for finding resonant frequencies and evaluating sound levels. Would be nice if it could be calibrated especially on low ends. Low end is always low. I am also curious about response on ends if I actually had a decent mic but still great app. Also entire spectrum rises when music played. Would prefer if zero level remained flatter.

Some bad moments

This app was useful when it works after purchasing it. Then it froze and never worked again. Tried to contact the developer without success. Do not buy this until it is fixed. It also does not work at 1/3rd octave, and it does not hold the setting from previous sampling. DO NOT PURCHASE! It sometimes work and freezes again.
This is the best app. Ive found to help tune my PA. The builder is quick to respond to issues. Cannot be beat for the price.
As far as RTA apps for the iPhone go, this one seems to be about the best. And you cant beat the price. I use it all the time.
I wonder whether its accurate. What it says sometimes differs from the notes my ios instruments have played, usually 1 Key lower. It could be better if the noises are automatically ignored.
The Octave RTA is a fantastic app for anyone that needs to check for troublesome frequencies in the stage monitors, or to define hotspots in the EQ of the mains for quicker more accurate adjustment. You wont find a better value for a tool like this.
Excellent App ! Way easier than lugging an audio spectrum analyzer. Only suggestion would be for calibrated external mic use, such as the MicW i436, and calibration routines against noise sources. Considering the price, a nit.

Usually Octave: An RTA for the iPhone iOS app used & searched for

rta, rta lite, rta pro, and other. So, download free Octave: An RTA for the iPhone .ipa to run this nice iOS application on iPhone and iPad.