DigiDesign Pro Tools Reference Manual page 689

Incoming Time (Current Time)
This display indicates incoming time code.
Time Code Rate
This pop-up menu lets you set the SMPTE time
code rate for the current session.
Feet+Frame Rate
Feet+Frame rates for sessions can be set with the
Feet+Frame Rate selector. Supported rates are
23.976, 24, and 25 fps.
Set this rate to match the rate of the film projec-
tor, or the video if the film projector speed is
taken into account. For example, doing a Tele-
cine transfer from a 24 fps film projector to
NTSC video would necessitate the projector run-
ning at 23.976 fps. This is regardless of whether
the session is using pull down audio or not.
SYNC Setup Settings
(Pro Tools HD Only)
The controls in the SYNC Setup section let you
configure SYNC I/O settings, including clock
reference, positional reference, video format,
and VSO.
These controls are grouped in the Synchroniza-
tion Settings section.
Clock Reference
This menu lets you set the Pro Tools clock refer-
ence.
When using a Digidesign SYNC I/O, the Clock
Reference selector lists all supported clock types
for the Digidesign synchronization interface.
When using Pro Tools|HD systems without a
SYNC I/O, choices include any currently-en-
abled digital format or source available from
your Pro Tools|HD I/O (such as AES, S/PDIF, or
1x Word arriving at the Pro Tools|HD interface's
Word Clock In port).
Positional Reference
Use this menu to set the time code source for
Pro Tools to use for positional reference.
Video Format
Use this menu to set the session for NTSC or PAL
format.
Variable Speed Override (VSO)
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Variable Speed Override (VSO) requires a
SYNC I/O.
When a SYNC I/O is connected to a
Pro Tools|HD system, the VSO controls are lo-
cated in the SYNC Settings section of the Session
Setup window.
VSO slider
Refer to the SYNC I/O Guide for instructions on
using VSO to varispeed Pro Tools playback.
Locked Indicator
The Locked indicator stays lit when the
SYNC I/O is locked to the selected clock refer-
ence. The Locked indicator flashes if the selected
clock reference source is missing or out of lock-
able frequency range.
Chapter 30: Working with Synchronization 677