User guide

HARDWARE INSTALLATION

SMPTE TIME CODE SYNC CONNECTIONS

If you own a MIDI Express XT or micro express, it 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 7, “Synchronization” (page 55).

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 time code” on page 58.)

Figure 2-5: Connecting a SMPTE time code source.

MOTU MIDI Interface

SMPTE IN

Analog audio tape recorder Video tape recorder

Examples of a SMPTE

time code source

Audio or SMPTE out

Shielded, quarter-inch audio cable

!USB Interfaces Manual Book Page 12 Tuesday, August 16, 2011 11:21 AM