Specifications

SYNC HD Guide46
To select Auto LTC/VITC for positional reference
using Pro Tools:
 In the SYNC Setup section of the Session
Setup window, select
Auto LTC/VITC from the
Positional Reference pop-up menu.
To select Auto LTC/VITC for positional reference
using the front panel controls:
 Press the Positional Reference switch until
both the LTC and VITC LEDs are simultaneously
lit (this indicates Auto LTC/VITC).
To select Auto LTC/VITC for positional reference
using the SYNC Setup software utility (Windows
only):
 Select Auto Switch LTC/VITC from the Posi-
tional Ref
pop-up menu.
Serial Timecode
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 timecode.
For MachineControl-equipped Pro Tools sys-
tems, serial timecode from either 9-pin port can
be used for positional reference.
To use Serial Timecode as the SYNC peripheral
positional reference:
 In the SYNC Setup section of the Session
Setup window, select
Serial Timecode from the
Positional Reference pop-up menu.
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
settings are explained in the following sections.
To use Bi-Phase/Tach for positional reference:
1 Do one of the following:
•In ProTools, in the
SYNC Setup section of
the Session Setup window, select
Bi-Phase
from the
Positional Reference pop-up menu.
• Press the Positional Reference switch on
the front panel of the SYNC peripheral to
select Bi-Phase.
• In the SYNC Setup software utility (Win-
dows only), select Bi-Phase/Tach from the
Positional Ref pop-up menu.
2 Continue by setting the starting frame as de-
scribed in “Bi-Phase/Tach Starting Frame” on
page 47, and setting other Input Signals options,
as appropriate.
The Positional Reference setting you choose
remains set, session to session, until it is
changed again.
For additional information and examples of
Auto Switch LTC/VITC, see “Auto-Switch
LTC/VITC” on page 72.
For details on using serial timecode with
SYNC Peripherals, see the MachineControl
Guide.
The Positional Reference setting you choose
remains set, session to session, until it is
changed again.