Mike Sargent wrote: > I think there is serious money to be made by someone who builds a device > that sits between a CD player and an amp that introduces all of the > distortions, frequency limitations, wow & flutter, etc. that vinyl has, > and then periodically adds a click or snap to the audio and maybe even > once a day skips forward or backward on a particularly loud passage to > simulate a tone arm skip. An extra cost option would allow the user to > control just how badly the mismatch is between the RIAA equalization > curve applied during recording and playback. It could include a > magnifying glass so CD artwork appears as big as an album cover. > > I think I'm off to the patent office. > > Mike
we where halfway there in the early 90's there was an actual device that downtransformed and anti-riaa filtered the output of CD player to something you could put into your phono input on your beloved high end rig . I'm surprised that it did not caugth on ? it's cargo cult enough to be an instant hit ? I'm also miffed by how some audio writers that claims to know stuff misunderstand the implications of correctly used dither noise in digital audio. Claiming nonsense like at minus such and such dB the music is only presented at 5 bits thats not how things work . The noise in a dithered digital chain becomes random and uncorrelated to the sampling it's mathematically equal to random analog noise such as tape noise , the dithered digital system then behaves like the perfect analog system that never was a signal and a noise floor . See Monthys videos about digital audio at xiph org where he presents a signal presented by 1/4 bit clearly visible in the noise if you dont believe me :) and also debunks the myth that a digital system does not get it's timing better than the sample rate . Our reconstruction filters in our digital systems may not be perfect but thats really a red herring these errors are magnitudes below what vinyl or tape does to the signal . So using 11-13 bits it's no problem when doing a vinyl rip so 16bits is just fine . However in the procedure I would use 24/96 ADC and then run some minor adjustments and anti click if necessary , but then downconverting to 16/48 would not do any harm . Actually capturing >20kHz from a vinyl in practice the very best pickups in the very best turntable and arm and a vinyl in mint condition might do it . -------------------------------------------------------------------- Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad1 with iPengHD & SqueezePad (spares Touch, SB3, reciever ,controller ) server HP proliant micro server N36L with ClearOS Linux http://people.xiph.org/~xiphmont/demo/neil-young.html ------------------------------------------------------------------------ Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=103078
_______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
