"Arny Krueger" wrote in message
...

"Robert Morein" wrote in
message news

wrote in message

ups.com...
Robbert "bad scientist" Morein opined:

I speculate this is due to both low capacitance, and
reduced skin
effect.

Mr. Morein: There is no audible skin effect in the
frequency ranges
that audio cables operate in.

I'm sorry, but your assertion is not well grounded.

Two aspects of the above statement are subject to dispute:
1. There is no trivial mathematical basis for it.
2. It may still be true, but there are no publications
that support it. The
publications of Malcolm Hawksford go against the above
statement.

If the poster wishes to claim point "1", the below serves
as a refutation:

The skin depth is defined as the depth at which the
conductivty is reduced
to 1/e from the surface value. e ~ 2.718

The formula varies depending upon the material. Assuming
copper, the skin
depth sigma is given by sigma = 2.6*K1/sqrt(f).
At 10 kHz, the skin depth is .026 inches = .664
millimeters.

HOWEVER, the factor of note, 1/e, is an artifact of the
equation that
determines skin depth. For audibility, it is more relevant
to consider the
attentuation in dB, if the attenuated cross section were
driving an ohmic
load.

The magnitude of the derivative (which is negative) of the
conductivity
curve, is greatest at the boundary. The loss in
conductivity of one factor
of 1.3, is approximately equal to 0.664mm/4 = .166mm at 10
kHz.

For a more lucid treatment, please see:

http://www.st-andrews.ac.uk/~www_pa/...ect/page2.html

And Dr. Malcolm Hawksford takes the opposite point of view.