DigiDesign SYNC HD Manual page 43

Video and Clock Reference
(SD Video Only)
If you have only a single SD (standard defini-
tion) video source, and if the video source and
the SYNC peripheral have a common video ref-
erence, then you can connect the SD video sig-
nal to the Video In connector.
In situations where a common Word clock is re-
quired between Pro Tools systems or consoles,
you can still use Video Reference to maintain
sample accurate sync while using:
• the Satellite Link option to synchronize
multiple Pro Tools systems
• Pro Tools as a dubber or stem recorder in
Remote Mode or Deck Control mode
• a Pro Tools system in a Video Satellite con-
figuration (if digital audio interconnects
are required)
Video Reference and Frame Edge
Alignment
When video reference is present, Pro Tools auto-
matically aligns to frame edge.
When the SYNC peripheral Video Ref connector
is receiving a valid video signal, the Ref Present
indicator in the Session Setup window lights.
Configuring SYNC Peripherals to use
Video Reference and Word Clock
If the video reference and the Word clock refer-
ence are derived from the same house sync gen-
erator, you can configure the SYNC peripheral
to simultaneously use Video Reference for frame
alignment and Word clock for clock reference.
There are two ways to configure SYNC peripher-
als to use Video Reference and Word Clock:
Clock Source via the SYNC Peripheral
(SYNC HD Only)
To configure Pro Tools to use video reference and
word clock:
In the Format section of the Session Setup win-
1
dow, select SYNC from the Clock Source pop-up
menu.
In the SYNC Setup section of the Session Setup
2
window, select Word Clock or AES/EBU from the
Clock Reference pop-up menu.
In the SYNC Setup section of the Session Setup
3
window, select the appropriate format from the
Video Ref Format pop-up menu.
Clock Source via an HD Peripheral
(SYNC HD or SYNC I/O)
To configure Pro Tools to use video reference and
word clock:
In the Format section of the Session Setup win-
1
dow, select the Interface (192 I/O or 96 I/O) >
Word Clock or AES/EBU from the Clock Source
pop-up menu.
In the SYNC Setup section of the Session Setup
2
window, select Loop Sync from the Clock Refer-
ence pop-up menu.
In the SYNC Setup section of the Session Setup
3
window, select the appropriate format from the
Video Ref Format pop-up menu.
Chapter 4: Using SYNC Peripherals 37