Don Pearce wrote:


There is no reason why any sound in the audible range (and that
includes the high strings) would sound any different under 24/88 than
16/44.1 They will both be reproduced identically provided they haven't
been manipulated in some way.

You say that but...
To my mech eng mind 44.1 kHz doesn't seem enough to sample a 20kHz
signal properly. Now I haven't read it up completely, but my
understanding is that the brick wall filter reconstructs the original
signal from the sum and difference that I would expect to result from a
sampling rate close to double the signal (is that right?). I'm not
confident that there is such an ideal filter, and systems such as legato
link seem to have none. I haven't managed to find out how upsampling
DACs do the interpolation yet, but they might seem to be a Good Thing.
Of course this is all a bit abstract really since I don't think that my
hearing goes much beyond 16kHz.
At the very worst I can console myself that I did need a new CD machine
(the old one became too choosy about it's discs) so I haven't wasted all
my money on self delusion!
Roger