opaqueice;348361 Wrote: > Well, that's interesting - although you have to take such reports in the > popular press with a tablespoon of salt. In my field I find that the > percentage of reports which appear in the major media and are > substantially correct is really quite small (not excepting the ones > about my own work!). > > But anyway, if it's true it may mean we need a digital standard with > higher sample rate. That's all. And from what I've read, the high > frequency extension of standard vinyl that's been played more than a > few times is well below 22 kHz.
Well, when I read about the author at http://www.davemoulton.com/background.html I don't see any reason to doubt his report. He clearly is a professional and heavily involved in audio & music education. Also, he favors digital. About the vinyl degradation: there's is difference between specs like those from RIAA (out of memory: after 1 play 20 kHz, 2nd play 17 kHz etc), early pickups and later & current high quality pickups. Quadraphonic vinyl playback is 47 kHz. > I didn't say that because I thought it was impossible - I'd be very > interested to do such a test! [...] It might be hard to find a good > quality set of master recordings that's never been digitized and can be > transferred to vinyl without ever doing so - what do you think? I was having a little fun with that statement ;-) I think a good 180- or 200-grams all-analog LP, turntable, phono pre-amp, ADC and DAC is all you need. First recording without ADC/DAC and second with. As you use the same full analog source for both, this would result in the exact test-set of 2 LP's you need. They might be less quality because of many reasons but those factors would be the same for both; only the ADC&DAC in the chain for one of them is the difference. > I think standard vinyl records can at best get up to 30kHz, and only > when brand new - a few plays smooths them out considerably. I don't > know anything about quadrophonic vinyl - but regardless, it's easy to > design and implement digital standards that can produce such high > frequencies, so if it turns out to matter, digital can easily handle > it. Well, according to some info I found, vinyl can do well over 50 kHz without any trouble. Wear from playing is so different between quality of pickups: from horrible "grey after 10 plays" to no wear at all with laser pickups. You can throw $$$ at the problem and it'll actually help. I agree that digital can do the same, but mainstream doesn't... yet... cheers, Nick. -- DeVerm ------------------------------------------------------------------------ DeVerm's Profile: http://forums.slimdevices.com/member.php?userid=18104 View this thread: http://forums.slimdevices.com/showthread.php?t=53355 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
