Smpte Time Code Sync Connections - MOTU USB-MIDI User Manual

SMPTE TIME CODE SYNC CONNECTIONS

Your MOTU MIDI interface is both a SMPTE time
code converter and generator. As a converter, it
locks (slaves) to incoming longitudinal SMPTE
time code (LTC) and converts it to MIDI Time
Code (MTC) and reshaped LTC. As a generator, it
produces both LTC and MTC time code, either
running under its own internal clock or while
slaved to external time code (or other time base).
When making the SMPTE time code connections
described in the following sections, do not pass the
signal through any type of signal processing
equipment. Use shielded quarter-inch audio
cables.
For a complete explanation of synchronization, see
chapter 8, "SMPTE Synchronization" (page 71) or
chapter 12, "Synchronization with the AV"
(page 117).
Connecting a SMPTE time code source
Connect any SMPTE time code source, such as the
SMPTE timecode track on an analog multitrack
tape deck, to the SMPTE IN port on your MOTU
MIDI interface as shown in Figure 2-5. (For
information about recording time code tracks, see
"Striping SMPTE" on page 73.)
Analog audio tape recorder
Audio or SMPTE out
MOTU MIDI Interface
SMPTE IN
Figure 2-5: Connecting a SMPTE time code source.
12
Video tape recorder
Examples of a SMPTE
time code source
Shielded, quarter-inch audio cable
Connecting a SMPTE time code destination
Connect the SMPTE OUT port of your MOTU
MIDI interface to the SMPTE time code input of
any destination device that accepts SMPTE time
code as shown in Figure 2-6. For example, time
code can be recorded on an outside track of a
multitrack tape recorder so that everything can
subsequently be synchronized to the multitrack.
Other examples of a SMPTE time code destination
are systems that have the ability to slave to SMPTE
time code, such as stand-alone hard disk recording
systems, digital audio workstations, or automated
mixing consoles.
SMPTE or Audio in
Examples of a SMPTE
time code destinations
Analog audio tape recorder
Figure 2-6: Connecting a SMPTE time code destination.
I N S T A L L I N G Y O U R M O T U I N T E R F A C E
MOTU MIDI Interface
SMPTE OUT
Shielded, quarter-inch audio cable
Video tape recorder