[Tig] audio T/C patching question.

[Ian Richardson]

Hi Rob
as you suggest a central 'patching position' can work fine for a small
operation
In the telecine room is fine if you dont have a central Rack Room.
Use bantam tip+ring+sleve jackfields and keep everything balanced.
Keep your time code patching away from your Audio...it can crosstalk
Also FYI you can happily patch RS422 machine control with 'dual' Bantam
jacks.
Also FYI you can 'split' code and/or audio with patch 'y' cables if you
need two feeds.
not strictly kosher but works fine.
I would recommend you hang a 'master' TC gen/reader in the rack
somewhere.
It will be useful in confirming longitudinal code reading and provide a
'known' code source

regards
Ian Richo
Sydney
 

-----Original Message-----
From: tig-bounces at tig.colorist.org [mailto:tig-bounces at tig.colorist.org]
On Behalf Of Rob Lingelbach
Sent: Saturday, 15 March 2008 6:59 AM
To: Telecine Interest Group
Subject: [Tig] audio T/C patching question.

Cintel and FilmLight support the TIG in 2008 - read about Cintel's NAB
presence at 
http://colorist.org/wiki3/index.php/TIGNABFS08
 ====


I am looking at implementing an audio and SMPTE code patching  
capability for an expanding facility.

We have an effects department in another area of the same building,  
and have no interconnection between the grading suite (telecine Spirit  
SD PAL, DaVinci 2k+Defocus+, Digital Betacam and Betacam SP) and the  
effects area, other than by sneakernet.

We can handle the video without any pertinent questions.  But now I  
need to patch audio and timecode-  don't at present have any audio or  
t/c patching, and am not sure what is the best configuration.  I need  
to be able to send to the effects area the following:  Aaton Keylink  
timecode; LTC from Aaton or Digibeta; 4-channel audio from Digibeta  
deck.   My initial thoughts are that an audio patch bay, located in  
the telecine -  where the Aaton and Digibeta are located - be  
configured such that audio ins and outs are patchable/normalled, as  
well as timecode, to allow telecine work to proceed without any  
patches; in the case of sending timecode and audio to the effects  
area, one could patch, sending the outputs of the Digibeta deck, to  
that area via tielines.  Is there a more logical configuration?

Forgive what might on response be an answer I already knew, but the  
video t/c is not in any way connected, other than ideally being the  
same, to the LTC patch, correct?  ---because,  I have a T/C breakout  
box with XLRs, one of which is labeled "Video T/C."   This confuses me  
because VITC is part of image...

thanks in advance.
--
Rob Lingelbach
rob at colorist.org  http://www.colorist.org/robhome.html




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