Sorry if it disappoints but I know well the work of Claude Shannon and Harry Nyquist ...
What I was trying to contribute was that the samples on the CD do not faithfully represent the musical waveform, they only represent a version of it filtered at 20.5KHz, which seemed to be relevant at the time but now I can't remember why ... As an aside, just because 20Hz-20KHz has been used for years doesn't make it 'right', there is increasing psycho-acoustic experimental data that suggests that even though pure tones above approx. 20KHz cannot be heard directly their presence in music signals can be 'detected' in some way - as pointed out by Pat ... Arbitrary technical limits are often post-rationalizations of the technology limits of the time (e.g. 44.1/16), and one might point to the historic limits of valve-amp output transformers, speaker drive unit technology etc. (and the immature state of psycho-acoustics) for leading us to 20Hz-20KHz ... -- reeve_mike ------------------------------------------------------------------------ reeve_mike's Profile: http://forums.slimdevices.com/member.php?userid=995 View this thread: http://forums.slimdevices.com/showthread.php?t=26685 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
