Upsampling DACS: Take the Pepsi Challenge

Carl - look for the thread about vinyl and live music. A lot of recording-types and musicians in on that one. There is a great explanation by a recording engineer or two about high reequency roll off in the vinyl recording process. Maybe something to do with RIAA? Anyway, read through the thirty or so posts and try to learn something for a change instead of letting your not insignificant bruised ego stand in the way of reaching an understanding of how the brain processes sound and how the process of recording sound onto vinyl is compromised. As to your juvenile comments regarding hearing - only true way to accurately compare or measure hearing is in a total anechoic chamber using standardized methods. Best place I know of is at an Eye and Ear Hospital. Yours better that mine? Doubt it. I don't really care. What's it going to be next? Dualing triodes at 10 paces? Grow up. Time to go play with my stereo.

I am not Carl, and I do not disagree with your comments about LP. having a high frequency roll off. Perhaps it is the RIAA, or perhaps a flaw in the original design of the LP format (it is quite old). However, the roll off in the extreme highs is less of a problem to my ear than the brick wall filter in digital, and the additional problems with the digital format's phase response. There is no perfect format for the ultimate in home reproduction right now, and in the years to follow, perhaps digital will finally accomplish what was originally promised it would do (20 years ago). However, I have been listening to recorded music for all of those 20 years, and I pride myself in extracting all the performance from my system that can be had. And, as you said yourself, LP. is the superior format right now, so until things change, I am happy to enjoy my rather large collection of music and know that considering the state of things, I cannot do better.

I am not Carl, and I do not disagree with your comments about LP. having a high frequency roll off. Perhaps it is the RIAA, or perhaps a flaw in the original design of the LP format (it is quite old). However, the roll off in the extreme highs is less of a problem to my ear than the brick wall filter in digital, and the additional problems with the digital format's phase response. There is no perfect format for the ultimate in home reproduction right now, and in the years to follow, perhaps digital will finally accomplish what was originally promised it would do (20 years ago). However, I have been listening to recorded music for all of those 20 years, and I pride myself in extracting all the performance from my system that can be had. And, as you said yourself, LP. is the superior format right now, so until things change, I am happy to enjoy my rather large collection of music and know that considering the state of things, I cannot do better.

First of all, let me get one thing srtaight about Resolution Audio. I admire Jeff Kalt very much, and respect his work on an exalted level (I love his CD player, and will likely never part with it). I think that far too much is being made of some minor misconceptions on my part(it's not as if I write for a mag that you are all paying for, so why do any of you hold my being "wrong" to such a high level of scrutiny? I mean, somebody freaking asked me to describe my view of that subject the best I could, so I did...I was partially in error perhaps...get over it...I have, and then some. Why can't the rest of you?). Here's where the GRAY AREA on that subject still is for me: According to another's post on here, Kevin Halverson of Muse has said that upsampling CAN be distinguished from oversamplng in the following manner (and this was also how I understood it to be all along, so if you say I'm wrong on this, it would seem you are saying Kevin is wrong also): THAT UP-SAMPLING is upstream of the DAC, AND employs processing that "interpolates"...and OVER-SAMPLING occurs within the DAC. Now, it all depends on what you describe as being "inside" or "outside" the DAC. The only thing I will concede on this, and Jeff has made it clear to me personally, is that with oversampling, the DAC does get a datastream which is already "not redbook", it's higher rez than that already. I did NOT realize that. If it makes all of you happy that this somehow has disproved how I conceived it before, so be it. Doesn't make me a retard, though. I have no plans to design DACS or CD players, a good thing, I guess. I am convinced not to even try any of the affordable "upsampling" dacs, though, even for kicks............I'm no bigot, and you are in need of a hine end correction from my foot. You are the one who is crass, and also judgemental, and are likely too old to realize it.

I'm fully aware of RIAA pre-equalizaation, and the reason for it. And for your information, I already am a recording engineer (I make my own, which is more than you can do), so there goes that little smug blather-theory of yours. YOU STILL DIDN'T ASNWER THE QUESTION, AND CERTAINLY NO CANECHOIC CHAMEBER IS REQUIRED. You can't hear squat, old man, get a hearing aid, already!!!