Re: Dare I start another vinyl topic? Reply #50 – 2017-12-19 10:19:13 Problems with the test files: If you're trying to isolate the effects of vinyl, you can't do that with samples made from analog tape masters which are already two or more generations down from the original. Many of the issues with tape and vinyl are similar in several aspects, and will thus it would be difficult or impossible to differentiate between a vinyl copy of an analog master vs a digital copy of the same master, assuming pristine vinyl once surface noise and ticks are eliminated.If you want to isolate vinyl differences you have to start with masters better than vinyl in all aspects, and that would most likely be a digital master. You might also number the files so people posting their "results" with files 1, 2, 3...etc... will have some means of definitive identification. I'm not sure what validity there is in evaluating a vinyl that has already been noise reduced and de-clicked, as those are the big issues. What's left after that is distortion of various kinds, much of which exists in the analog tape chain as well. So what you're actually asking is if we could identify second or greater generation analog master transferred to vinyl vs a similar master transferred to digital. Essentially, "can you see if my window is dirty by looking through this other dirty window?" I don't know what that proves, or even what the point is. In my own tests of vinyl and CD made from the same digital master with no changes (and with the lacquer cut conservatively so as not to "push" the limits of the medium), I could get first-play pristine vinyl to sound exactly like the CD on the outer half of the vinyl, up until the area between tracks where surface noise was the tell, or where a vinyl imperfection was audible. However, past several plays, there were other issues creeping in, and our material didn't stress separation much at all. So it got down to surface noise and ticks, then groove wear distortion. Inner grooves of course were a different story.I guess it goes without saying that comparing a CD and vinyl of the same recording is just an exercise, as they've taken usually entirely different mastering paths.