Has anyone here tried to implement the various techniques that Obsessive Compulsive Audiophile has explained (or attempted to) on YouTube? He claims that correcting phase below Schroeder frequency is important and his technique results in a marked increase in clarity, and now proposes that any efforts to do any correction above that are doomed to result in more problems than are solved.
I tried to implement some of his previous techniques and couldn't get them to work. He's a gifted vector math expert, but he tended to make mistakes and/or get off on tangents in his previous videos and hasn't put together a pdf that clearly explains every step in sequence. At the very least his latest iteration is much simpler than his previous efforts, but I have yet to give it a shot.
I haven’t seen all his videos, but my guess is what he means above Schroeder is “auto-magic” inversion to correct additional room reflection effects can make things worse with excessive “correction”. But, IMO, the same can still happen even below that.
The inversion techniques in REW, I find, can tend to work too aggressively and personally I prefer manual EQ.