In article ,
Clive Backham wrote:
What's left for debate is whether the sampling frequency used for CD
is already at or beyond the limits of human hearing

It is - when digital was in its infancy I and many of my colleagues had
an
opportunity to play with different sampling rates on a wide variety of
material. And the point where any difference is detectable is below that
of CD - *that's* why it was chosen - although the exact rate was down to
TV video parameters so video recorders could be used.


Is it possible that, back then, the DACs were only effective up to a
certain rate, at a lower rate than for the ear? If, say the DACS showed no
improvement in sound past 44kHz, your experiment would always show cd to bo
optimal. Just a thought.

--
Jim