Syncing To Smpte Time Code - MOTU Traveler-mk3 User Manual

SYNCING TO SMPTE TIME CODE

The Traveler-mk3 system can resolve directly to
SMPTE time code. It can also generate time code
and word clock, under its own clock or while
slaving to time code. Therefore, the Traveler-mk3
can act both as an audio interface and as a digital
audio synchronizer to which you can slave other
digital audio devices. You can use the Traveler-mk3
to slave your audio software to time code as well, as
long as your software supports either sample-
accurate sync or MIDI Time Code, which is the
means by which the software follows the
Traveler-mk3.
audio cable bearing LTC
(Longitudinal Time Code)
Analog
quarter-inch jack
Analog Word
out Out
audio BNC
cable cable
Other digital audio device
slaved to the Traveler-mk3
Figure 3-17: Connections for synchronizing the Traveler-mk3 directly to SMPTE time code.
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First, choose SMPTE
as the clock source in
AudioDesk, Digital
Performer, or MOTU
Audio Setup. This
setting can also be
made in the MOTU
SMPTE Console
(shown below).
SMPTE time code source
When lockup is achieved, the LOCK
light illuminates and the TACH light
blinks once per second.
Traveler-mk3 interface
FireWire cable
Mac running AudioDesk,
Digital Performer or other host software.
Use this setup if you have:
✓
A SMPTE time code source, such as a multitrack tape deck.
✓
A Traveler-mk3 by itself, OR with another slaved device (such
as a digital mixer).
✓
Host software that supports sample-accurate sync or MIDI
Time Code sync.
This setup provides:
✓
Continuous sync to SMPTE time code.
✓
Sub-frame timing accuracy.
✓
Transport control from the SMPTE time code source.
If your host appli-
cation supports
sample-accurate
sync, enable it. If
not, set it up to
sync to MIDI Time
Code (MTC).
Launch the MOTU SMPTE Console to specify the time code frame
rate and amount of freewheel. Also, confirm that the Clock
Source/Address is SMPTE/SMPTE. For details about the other
settings, see chapter 12, "MOTU SMPTE Console" (page 107).
I N S T A L L I N G T H E T R A V E L E R - M K 3 H A R D W A R E
In AudioDesk or Digital Performer:
1. Choose Receive Sync from the Setup menu.
2. Choose the Sample-accurate option. (If this
option is grayed out, choose SMPTE as the
clock source setting first, as shown above.)
3. Make sure that Slave to External Sync mode
is enabled.