On Tue, 1 Aug 2006 16:32:38 +0100, "Paul" wrote:

snip

No need to do this. We know it is not a clone or anywhere close. It has
been butchered by the RIAA filter in an attempt to make up for the
inability of a mechanical system.

Pre-emphasis and subsequent de-emphasis is also used on analogue tape
recording systems, FM radio, etc etc. Nothing wrong with it if correctly
implemented.

Ok. I'm willing to strike that from my list if for no other reason than not
wishing to get bogged down
However, well done or not, to me it's a bodge, a fudge, a fix for an
inadequate method. If it wasn't needed it would not have been employed. The
fact the it is required tells me all I need to know.
Incidentally, in my view, both tape and FM are awful and could never be
labelled Hi-Fi either!

Paul


It is neither a bodge nor a fix. It is a way of using a resource that
would otherwise be wasted - high frequency headroom. An exactly
matched amplitude/phase curve is exactly equivalent to flat frequency
and phase, and there is no problem whatever in making that match.

And do remember that the CD specification includes the option to use
pre-emphasis.

d

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