Avid Technology Pro Tools SYNC HD - Page 46

Pro Tools | SYNC HD Guide40
To prevent destruction of the original VITC code,
the SYNC HD will not re-apply (regenerate) VITC
onto the same video stream from which it is read-
ing VITC.
LTC If you want to use LTC as a positional source,
do not select
Auto LTC/VITC.
External In order for the SYNC HD to regenerate
VITC based on an external positional reference,
you need to select both a clock reference and a po-
sitional reference.
To regenerate VITC based on an external
positional reference using Pro Tools:
1 Ensure that the SYNC HD is connected in-line
with a video source and video destination.
2 Ensure that VITC Insertion Enabled is selected
in the Synchronization page of the Peripherals
dialog.
3 If necessary, choose the line pair from the VITC
Generate Lines pop-up menu in the in the Syn-
chronization page of the Peripherals dialog.
4 In the SYNC Setup section of the Session Setup
window, select valid clock and positional refer-
ences, and ensure that you have selected the ap-
propriate video format (NTSC or PAL,
depending on your project). For instructions,
see “Video Format/System” on page 50.
The SYNC HD regenerates VITC and inserts it
onto the video signal (as soon as it receives a valid
clock reference signal and positional reference sig-
nal).
To regenerate VITC based on an external
positional reference using the front panel
controls:
1 Connect the video source to the SYNC HD
Video Ref connector and loop the signal to the
SYNC HD Video Input connector.
2 Press Set, and use the Up and Down switches to
display VITC Insertion (“VI7C In5”).
3 Press Set.
4 Use the Down and Up switches toggle between
On and Off.
5 Press Set to select VITC Insertion.
6 Ensure that you have selected the appropriate
video format (NTSC or PAL).
7 Press Set, and use the Up and Down switches to
display VITC Generate Lines (“6En LInE”).
8 Press Set. The default line pair is14/16, which is
also the SMPTE-recommended setting.
9 Use the Down and Up switches to scroll through
the parameter values and select a VITC line
pair.
10 Press Set. The LED Timecode Display will re-
turn to showing timecode numbers.
11 Select valid clock and positional references.
The SYNC HD regenerates VITC and inserts it
onto the video signal (as soon as it receives a valid
positional reference signal).