DigiDesign SYNC HD Manual page 36

Port Relinquished Lights when the SYNC Setup
dialog is not the frontmost window or is unable
to allocate a serial port with which to communi-
cate with the SYNC peripheral.
LTC Output Level
This control adjusts the analog audio level of the
SYNC peripheral LTC output, from –24 dBu to
+9 dBu.
Freewheel Duration
This control sets the period of time for which
the SYNC peripheral will continue to supply po-
sitional reference data after an external source is
interrupted or stopped (also referred to as Time
Code Freewheel in Pro Tools).
Video Format
This control selects the format (NTSC or PAL) for
both the incoming and outgoing video signals.
NTSC is used in North and South America, Ja-
pan, and certain other parts of the world.
PAL is used in most of Europe, Asia, and Af-
rica. Users of SECAM video (for France, Russia,
and certain other parts of the world) should se-
lect PAL.
VITC Read Lines
This control determines which line pair of in-
coming video signal is used for the VITC source.
When set to Auto, the SYNC peripheral will
search for the first valid line pair automatically.
Alternatively, this value can be set to specific
VITC line pairs.
30 SYNC HD Guide
VITC Generate Lines
This control determines the line pair of the out-
going video signal onto which the SYNC periph-
eral inserts VITC. Normally, this should be left
at the default (and preferred) setting of 14/16.
VITC Insertion Enabled
When selected, VITC will be inserted into the
outgoing video signal—assuming that a video
signal is present at a SYNC peripheral video in-
put, and that the SYNC peripheral is in a valid
mode for inserting VITC. The only invalid posi-
tional reference modes are VITC or Auto Switch
LTC/VITC. SYNC peripherals cannot read VITC
and generate new VITC at the same time.
Pitch Memory Enabled
When selected, the SYNC peripheral will remain
at a pitch (sample rate) that corresponds to the
last known incoming time code speed. When
deselected, the SYNC peripheral will revert to
the selected sample rate. If Pitch Memory is dis-
abled and the selected external clock reference is
not available, then the SYNC peripheral will re-
vert to the selected internal sample rate setting.
Idle MTC Enabled
Controls MTC Output during idle (play
stopped). When enabled, MTC is continuously
output. When not enabled, MTC output is
muted when playback is idle. See "MTC Output
and Idle Muting" on page 56 for details.