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the whole system will automatically track the project’s sample rate. Disadvantage
is that in theory jitter on the CC1’s outputs will be slightly higher. The CC1’s jitter
attenuation however is so large we do not expect this to be a problem.
• Connect the Loop Sync output of the Sync I/O (which is first unit in the chain) to
the word clock input of the CC1. Put CC1 in slave mode.
• Connect the outputs of CC1’s group 1 and/or group 2 to the Loop Sync input of
each “192” interface. Every 192 gets its own connection to the CC1 (star distribu-
tion). Make sure group 1 and 2 are set to ‘x1’.
• Software settings:
Setup – session setup
1. Set Sync source of the Sync I/O to “Master”. All 192 interface will automati-
cally switch to Loop Sync, which is taken care of by the CC1.
Pro Tools in post pro.
Here you’ll need to sync to video and time code. As outlined above, set the video
equipment to lock to word sync or use a video sync generator that accepts a word
sync input from the CC1. Naturally the ProTools hardware is receiving word clock
directly from the CC1. Also connect video sync to the Sync HD, it will be used just
for time code synchronisation.
The word clock connections are as described in the former paragraphs “Pro Tools
in music production”. Special attention is needed for the time code connection. Up
till Pro Tools 8 there was no way of combining the Sony P2 “Machine Control” time
code signal with an external word sync like the CC1. Selecting Sony P2 forced the
Sync I/O to slave to video sync. With current versions of Pro Tools you can lock
to word clock while at the same time using the video ref input on the Sync HD for
frame edge alignment of P2 sync. However, this only works for PAL and NTSC, not
for hi def rates. It is hoped that a future software update will address this. In the
mean time, for hi def production, please use the following workaround.
Since there is no such issue with LTC, we get to use three connections to the Sync
HD: word clock, LTC and Sony P2 for pure machine control. For clocking, have Pro-
Tools slave to word clock as described in this manual. In this case do not connect
video sync to the Sync HD. This insures that, if you happen to accidentally switch to
the video sync input, you get a clear error message to alert you to the problem. For
time code and machine control, follow the next steps:
• Software settings (take care to execute the following steps in the order de-
scribed):
Summary of Contents for CC1
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