FFT

I’ve been using this app for a looooong time. This is an amazing app that is definitely starting to show its age but remains extremely useful.

Aka: I use this app for all sorts of troubleshooting. Trying to find a slow leak in a tire or a vacuum leak on an engine. By showing the peaks in Hz you can visually "see" the sound in a way impossible to hear with your ears. Priceless tool for debugging anything that makes noise.

First of all, if you use sound systems, buy this app. Even if you own top shelf gear like I do (2 TEF analyzers, SMARRT, B&K mics with calibrators etc) you will use this A LOT because it is in your pocket. I bought most of the Studio Six apps, and except for RT60 they are pretty handy. They do NOT take the place of real gear for a bunch or reasons like non pro connectors, poor dynamic range, lack of frequency extension, characteristics of the built-in iPhone mic etc., and the only archiving is saving a pic of the screen, and when you do that it doesn't show what settings you have selected for that measurement. I am hoping that the long promised external mic helps fix a couple of these items. Enough of the negatives...I use this app several times every day. If I had to give it back I would be bummed. Buy it.