MIKE FARRILL said the following to CRAIG FORD on the subject of
Accura 56K (flex) (10 Sep 97  10:19:14)
 -> Aetherworks is the only outfit besides Lucent that I am aware of that
 -> making noises about upstream PCM, and none violate the
 -> Shannon/Hartley Theorem.
 MF> What is the exact Theorem, didn't it say that the maximum data speed
 MF> over analogue lines was 35k?
Quoting a previous reply by stuart.andrews@stanilite.com.au (Stuart Andrews)
C=B*logtobase2(1+SNR) bits/sec
C = Channel Capacity
B = Channel Bandwidth
SNR = Signal to noise ratio (NOT in dB)
. . . and the proaudio FAQ gives as reference:
 Claude E. Shannon and Warren Weaver, "The Mathematical Theory of
 Communication," U. Chicago Press, 1963.  [The seminal work on digital
 sampling...includes the original 1948 BSTJ sampling paper]
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