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Re: sync sound with undercrank

>. . .Another way
>is use the Evertz (or a Magnatek 9F counter) to generate biphase derived
>code for the Nagra to chase. I have used the Magnatek for solving similar
>problems, and I assume the Evertz will work as well.

The biphase driven Evertz 4025 will only generate valid timecode at
telecine rates of (nominal) 24 and 30fps. The Evertz timecode is locked to
a video reference and thus can only generate the correct numbers by using
simple divisors on the incomming tach pulse. This is not Evertz bashing -
it is all the product was supposed to do.

On the other hand, an old Gray (non-microprocessor) film code generator has
some modes available (via internal straps) that do not force the timecode
to lock to the video reference and could be used to generate off-frequency
timecode. And even then, the Nagra may not chase sync at speeds very far
from nominal.

We'll all be using digital audio random access workstations next year anyway.

--- David Tosh  dlt at earthlink.net  (CIS 72167,1376)
--- Video Engineer, Complete Post, Hollywood

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