Phil Leigh Wrote: > erm, guys... > > a perfect square wave can by definition only have 2 DC values with an > instantaneous transition between them (of course this is not possible > in the real world but we can get pretty close to perfect) with a > (variable or fixed) mark/space ratio determining the > periodicity/instant of the transition.
I have never looked at the output from a transport or the SB on a scope, but the last time a looked at a digital signal, it was far from square. The leading and trailing edges were rounded and suffered from digital noise, so detecting the actual point at which a signal changes state was almost abitrary. Now this was from looking at TTL, so I'm assuming that it is different for a digital output - or is it? What is the process by which a modern DAC samples the input? Does it go by voltage measurements at fixed intervals or is there an inbuilt "clocking" mechanism that causes the buffering of bits? Of course I shouldn't be so lazy and should go find out for myself! Paul -- CardinalFang You're only young once, but you can be immature forever... ------------------------------------------------------------------------ CardinalFang's Profile: http://forums.slimdevices.com/member.php?userid=962 View this thread: http://forums.slimdevices.com/showthread.php?t=24670 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
