"Peter Chant" wrote in message
...
On 01/06/2017 12:13 PM, Iain Churches wrote:
"Eiron" wrote in message
...
Six copies of Volume 5 currently available via eBay :-)

Two copies should be sufficient.
As the clicks will be in different places, you should be able to choose
the best bits of each. :-)


A cigar for that man:-)

Multiple copies of the original form the basis of
every good audio restoration project.

Question as a layman, I presume you have to phase lock or somehow
otherwise sync the two recordings very accurately. Or do people pick
the best recording and just splice the second track as and when required
to cover the worse bits?


No the two copy machines do not need to be
synchronised, (although it is agood idea to use
two identical recorders if possible), as you are
cutting between them.

What is important though, is that they be level
matched so that you can cut between them
without any perceptible level changes.

The second "B" tape is only required as a backup,
so that you don't have to go back to stage one,
(shellac pressing, gramophone and microphone)
if the edit does not go as planned.

Iain