A higher bit rate lets you digitally process audio without introducing artifacts. It's very common to record, mix, and master audio at 192/24 and even oversample well above 192k.
It has nothing to do with snake oil or hearing things above 22k it's about not introducing aliasing and other digital artifacts, and on highly dynamic content like classical can definitely be heard in the audible spectrum.
It has nothing to do with snake oil or hearing things above 22k it's about not introducing aliasing and other digital artifacts, and on highly dynamic content like classical can definitely be heard in the audible spectrum.