Im not an engineer, but I love this app

When I bought this app over a year ago, it was pretty much the only one of its kind on the store. Now there are lots of competing ones, so I cant comment if this is the best or how it compares.

I am a musician, and I use this app to gain a better grasp of the sounds around me. I quiz myself, guessing how many decibels a certain sound is, and checking my answer against the SPL meter, or trying to envision how the EQ is shaped when I listen to music, and checking it against the RTA.

I use the pink noise generator with the RTA to get a flat sound from my PA when I am performing without a professional soundman.

For all of these applications, this app has been an enormous asset. But the most helpful thing of all is in restoring my sanity-- about a year ago, I attended a very loud concert, and stupidly removed my ear plugs during the set. My ears were ringing for a few days, and I was afraid that I had given myself permanent tinnitus. Still hearing a faint high pitched noise at night in my bedroom a month later, I was convinced my hearing was done for. However, thanks to the RTA on this app, I was able to discover that there actually *is* a high pitched whine in my bedroom, and its not coming from my ears. It turns out that the frequency which is spiking, around 20khz, twice the volume of the nearby background noise frequencies, is precisely the pitch that I had feared was tinnitus. You cant imagine my relief, and for that, this app certainly deserves my highest rating! Now, if I could only figure out what is actually causing that annoying sound in my bedroom..

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