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Posted by Eric Desrochers on 02/15/06 21:44
Steve Guidry <steveguidry@earthlink.net> wrote:
> Not so, Mike. When SVHS was still regarded as a professional format, many
> devices did, in fact use the 7-pin u-matic style connector. JVC championed
> this group. Panasonic and their minions used the 4-pin, as i recall. I'm
> still using an Alta Group TBC/switcher in my dub room that has the 7-pin
> SVHS connectors.
For the benefits of all... The dub connector take the off tape,
down-converted chroma signal, which is 688 kHz for Umatic and 629 kHz
for SVHS, and output it as-is, without any conversion/mixing to
composite in the way, providing a higher quality signal than composite.
I remember using JVC editing decks in the early 90s and the recorder
offered a choice of composite, Y/C 358 and Y/C 629 inputs.
Using Y/C was a no brainer over composite but the picture quality
between 358 and 629 was more subtile, considering our plain VHS tapes...
> But in this particular case, this CEL device pre-dated SVHS by a few years,
> so it is decidedly a U-matic connector.
OK. Thanks!
> Lousy TBC, by the way.
Oh... :)
I take the occasion to ask once again for devices that could convert a
Umatic dub signal to either Y/C 358 or component, keeping the Y/C signal
fully separated allong the way. TBC or just converter.
I'm taking a conversion job, several Umatic archives tapes to DV and I
want to maintain maximum quality. Umatic being somewhat compromised by
itself, I don't want to degrade it some more. The recorded signal once
was composite (in the 70s when the recording was made!) but it IS really
Y/C on tape. No way I'll mix them to composite before DV capture.
Hence my asking.
Thanks!
--
Eric (Dero) Desrochers
http://homepage.mac.com/dero72
Hiroshima 45, Tchernobyl 86, Windows 95
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