DigiDesign SYNC HD, Руководство пользователя

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SYNC HD Guide 56
5
From the Positional Ref selector, select Gener-
ate.
6
In the Generator/Bi-Phase Preset window,
type in the desired time code start time, in
Hrs:Min:Sec:Frm. To reset to 00:00:00:00, click
Zero.
7
Click Set. Typically, at this point you would
arm the destination VTR to record video, so that
VITC can be inserted into the video signal, and
be recorded on the destination videotape. Make
sure that your chosen clock reference is actually
present and running, and that it is synchronized
with the incoming video signal.
8
Click Run to start. The time code addresses
will begin to increment.
9
Click Stop when you want to pause or stop the
generating process.
MTC Generation/Regeneration
MTC (MIDI Time Code) is a serial digital signal.
In many ways, you can think of it as an inaudi-
ble type of LTC that can be used by various MIDI
devices.
MTC is available from the SYNC HD MTC Out
connector, which is a standard DIN-style 5-pin
female MIDI connector.
To use MTC, connect MTC Out to a MIDI In
connector of a device that can recognize and use
MTC. Typically, this would be a console, se-
quencer, synthesizer or sampler keyboard, a
drum machine or other device.
MTC Output and Idle Muting
MTC is normally output whenever LTC is out-
put. Whenever LTC output stops, the SYNC HD
will continue to output MTC in bursts of one
frame every 200 milliseconds. This allows any
connected MIDI-reading device to be continu-
ously updated as to the position of VITC or Bi-
Phase (either of which might be operating at
slow or still speeds). Thus, you can still use a
connected MIDI device for Auto-Spotting from
VITC or Bi-Phase.
Optionally, this constant output can be set to
mute when time code (LTC) is idle.
To mute idle-time MTC output:
From Pro Tools
1
Choose Setup > Peripherals and click Synchro-
nization.
2
Select the Idle MTC Enabled option.
3
Click OK.
From the front panel:
1
Press the Set, Up and Down switches to dis-
play Idle MTC (IdLE 7C).
2
Press Set to display the current state (On or
Off).
3
Press Up or Down to toggle the Idle MTC set-
ting.
4
Press Set.
From the SYNC Setup software utility
(Windows only):
1
Launch the SYNC Setup.
2
Deselect the Idle MTC Enabled option.
Regardless of whether you are generating or
regenerating, an active video signal will
need to be present at one of the SYNC HD
video inputs. Check to see if the machine is
paused, stopped or unlaced.