I basically agree. The more detailed information from a stereo
transfer seems to be the most valuable for preservation work IMO, and
given the improvements in digital restoration in the last few years, one
can only assume that the situation will continue to improve. Still,
there's the issue of reducing noise (more than 40%) in the primary
analog signal, especially when it overlaps the lower frequencies of the
musical material to be preserved. Won't the ability to de-noise from a
mono signal also improve in the coming years?
  To rephrase the original question to experienced engineers, is there
a usually one better way to transfer mono discs or does the best way
depend on the disc (it's groove depth, wear, etc.)?


>>> [log in to unmask] 06/11/03 11:41AM >>>
For an archive, it seems sensible to store a stereo signal,
as well as any kind of processed version you might make, because we
be sure that software will improve in the future.

Don Cox
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