philippe_44 wrote: > Quick question: you've lost me here ... I fully agree with you wrt the > insanities I'm reading like "this NAS or this hardrive is giving a much > deeper sound" - this is laughable, but intermediate steps do not matter, > they really don't. Your signal can come from Mars, being encoded with a > on a RF carrier with any sort of phase, frequency, amplitude, spreading > modulation, then carried light (EM still) on optical fiber cables, then > transmitted by people beating drums if you want, it does not matter at > all - that's why we have invented error correction codes, to make all > this lossless (oh well, okay, yes, the BER is never 0 but it can be as > low as you want, as long as you do not try to violate Shannon's > theorem). But, when you do the D/A conversion, this is where shit > happens and this where also noise can be re-injected by some proximity > interferers - but this is very close proximity, not the ethernet cable > between my computer source and the next switch. > > Maybe I missed your point
It is a slight possibility to inject noise at the last leg , but as Archimagos measurment shows it does not actually happen in practice with normal equipment he uses rather crummy switches etc to hammer in the piont . And if the player has some of the shelf recovering circuit it would also work just fine . The ethernet interface is engineered to be rather trouble free . It would be rare exceptional cases when this do not work . It is two current loops with isolation in both ends rather low impedance in bot sender and reciever so it's not prone to pick up noise by design . In industrial environments you could sometimes use shielded cat cables , but at home they are not necessary and actually could be one of these rare cases when can get a noise problem ! so the default is not to use shielded cat cables at home then you migth just connect the computer ground to your hifi ground . So in practical use you don't see weird noise transfer that interfere with the DAC it would pop out in this kind of test . And the kicker is that if you have this exceptionally rare problem an audiophile cable is not the solution :) they don't provide anything you could not get in another cable from a normal vendor . And if they do it's often of spec " modifications " that makes them worse than standard cables . -------------------------------------------------------------------- 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=103146 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
