Around five years ago or so I went to Bob Katz's place for him to sign my copy of his book on mastering. He met me in the doorway, signed my book, and then asked me if I'd like to come in for a tour. Of course, not one to pass up an opportunity to honor hospitality when I see one, I agreed. 😇 He showed me around and let me listen to music in his studios (he has two rooms) for almost three hours. He's a great guy and very willing to pass on knowledge to a humbled and very appreciative visitor who only came to get a signature. Bob taught me about room treatment and digital room response correction while I was there. Having never heard of the topic before, I was intrigued. There was something to it, though, because I had never heard music sound like that in my life. Bob showed me Room EQ Wizard and told me that it was a great entry point because it's free, and he also told me to get myself a miniDSP UMIK-1 to use with it, which I promptly did. Of course my setup at home sounded nothing like Bob's mastering studio, and I also became acutely aware of the fact that I didn't know as much as I thought I did about how to properly listen to music critically. But, I became obsessed with learning about how to get myself aligned as closely as possible to what I heard and learned that day. My microphone arrived and I cracked open REW for the first time... Flash forward to now: after five years, a handful of room correction software licenses, and countless hours of experiments, comparisons, and trial and error, I've taken REW about as far as it can go. In addition to that, I'm just about finished with my own DRC software, Iris. I've come full circle I suppose. Iris does room correction my way; the way I remember hearing it in Bob's studio. It took me this long, but I got things figured out. Iris represents so much more than what it does, which is what makes it special.