DigiDesign SYNC HD Manual page 46

Adjusting LTC Output Level/Gain
To adjust LTC output level/gain:
From Pro Tools:
Choose Setup > Peripherals and click Synchro-
1
nization.
Choose a value from the LTC Output Level pop-
2
up menu.
Click OK.
3
From the front panel:
Press Set, and use the Up and Down switches
1
to display one of the following:
• SYNC HD: LTC Level ("L7C LEUL")
– or –
• SYNC I/O: LTC Gain ("L7C GAIn")
Press Set.
2
Press the Up or Down switches to scroll
3
through the available values (in 3 dBu steps).
Press Set.
4
For further information on LTC signals, see
"LTC Signals" on page 72.
40 SYNC HD Guide
Pilot Tone
SYNC peripherals can resolve to an external Pi-
lot Tone signal for clock reference, for synchro-
nizing to (or transferring audio from) certain
types of open-reel audio tape recorders. Pilot
Tone is basically a 60 Hz (NTSC) or 50 Hz (PAL)
sine wave tone. Pilot Tone is used on location
film shoots to establish a common sync refer-
ence between a film or video camera with a por-
table 1/4-inch analog ATR. Pilot Tone contains
no positional information; it provides only
clock reference.
The SYNC peripheral decides whether to use
60 Hz or 50 Hz as the pilot tone reference fre-
quency according to the setting of the Video
Format. When set to PAL, the pilot tone fre-
quency is assumed to be 50 Hz. When set to
NTSC, 60 Hz is assumed.
Connect the Pilot Tone reference source to the
SYNC peripheral Bi-Phase/Tach/GPI/Pilot port.
To resolve the SYNC peripheral to Pilot Tone:
From Pro Tools:
In the SYNC Setup section of the Session Setup
window, select Pilot Tone from the Clock Refer-
ence pop-up menu.
From the front panel:
Press the Clock Reference switch to select
Pilot.
From the SYNC Setup software utility
(Windows only):
Select Pilot Tone from the SYNC Setup
Clock Ref pop-up menu.
For additional Pilot Tone information, see
"Pilot Tone" on page 75 in Appendix A.