DigiDesign SYNC HD Manual page 52

To select Auto LTC/VITC for positional reference:
From Pro Tools:
In the SYNC Setup section of the Session Setup
window, select Auto LTC/VITC from the
Positional Reference pop-up menu.
From the front panel:
Press the Positional Reference switch until
both the LTC and VITC LEDs are simultaneously
lit (this indicates Auto LTC/VITC).
From the SYNC Setup software utility
(Windows only):
Select Auto Switch LTC/VITC from the SYNC
Setup Positional Ref pop-up menu.
For additional information and examples of
Auto Switch LTC/VITC, see "Auto-Switch
LTC/VITC" on page 72 in Appendix A.
Serial Time Code
SYNC peripherals provide 9-pin ports that allow
MachineControl-enabled systems to remotely
control or follow external 9-pin transports
through the use of serial time code.
For MachineControl-equipped Pro Tools sys-
tems, serial time code from either 9-pin port can
be used for positional reference.
For details on using serial time code with
SYNC Peripherals, see the MachineControl
Guide.
To use Serial Time Code as the SYNC peripheral
positional reference:
In the SYNC Setup section of the Session Setup
window, select Serial Time Code from the Posi-
tional Reference pop-up menu.
46 SYNC HD Guide
Bi-Phase/Tach
Bi-Phase/Tach signals are clock reference sig-
nals, and do not contain positional information
of their own. However, they do contain enough
information for SYNC Peripherals to calculate
positional information.
To calculate positional reference from
Bi-Phase/Tach, the SYNC peripheral must be
given a starting frame address and a specific
pulses-per-frame value. Each of these related set-
tings are explained in the following sections.
To use Bi-Phase/Tach for positional reference:
Do one of the following:
1
From Pro Tools:
• In the SYNC Setup section of the Session Setup
window, select Bi-Phase from the Positional
Reference pop-up menu.
From the front panel:
• Press the Positional Reference switch to select
Bi-Phase.
From the SYNC Setup software utility
(Windows only):
• Select Bi-Phase/Tach from the SYNC Setup Po-
sitional Ref pop-up menu.
Continue by setting the starting frame as de-
2
scribed in "Bi-Phase/Tach Starting Frame" on
page 47, and setting other Input Signals options,
as appropriate.