User`s guide

INSTALLING THE TRAVELER HARDWARE
33
SYNCING TO VIDEO AND/OR SMPTE TIME
CODE USING A SYNCHRONIZER
If your host audio software does not support the
Traveler’s on-b o a rd SMPTE sync features (because
your software does not support sample-accurate
sync), you need a universal synchronizer, such as a
MOTU MIDI Timepiece AV. These dedicated sync
boxes can read video and SMPTE time code and
then convert it into word clock and MIDI Time
Code (MTC). The word clock goes to the Traveler
to resolve the audio hardware, and MIDI Time
Code is fed to your host audio software, which
locks to it, as shown below in Figure 4-16.
Figure 4-16: If your host audio software does not support sample-accurate sync and the Traveler’s built-in
SMPTE sync features, use a universal synchronizer such as the MOTU MIDI Timepiece AV or Digital Timepiece.
PC running any audio software
MOTU MIDI Timepiece AV or
Digital Timepiece slaving to
video and/or SMPTE time code
audio cable bearing LTC
(Longitudinal Time Code)
word clock MIDI Time Code
(Via MIDI interface)
Set up your audio software to
slave to MIDI Time Code.
Video deck
or other source for video and/or SMPTE time code
Choose Word Clock In as the clock source in the MOTU
FireWire Audio Console. If you have multiple interfaces
connected, be sure to choose the Word Clock In option that
corresponds to the interface receiving the clock signal.
Trav eler
Use this setup if you have:
✓ Video and/or a SMPTE time code source.
✓ A Digital Timepiece, MIDI Timepiece AV or other universal
synchronizer.
✓ Host software that does not support sample-accurate sync
(although you can use this setup even if it does).
This setup provides:
✗
No sample-accurate locating.
✓ Continuous sync to SMPTE time code.
✓ Sub-frame timing accuracy.
✓ Transport control from the SMPTE time code source.
!Traveler Manual/Win Page 33 Monday, November 29, 2004 3:50 PM