Apple Logic Express 9 User Manual
Page 1172
• Transmit MIDI Clock: Destination 1 pop-up menu: Allows you to determine the first
discrete MIDI output port for the MIDI Clock signal.
• Transmit MIDI Clock: Destination 2 checkbox: Allows you to activate MIDI Clock
transmission. See further details above.
• Transmit MIDI Clock: Destination 2 pop-up menu: Allows you to determine the second
discrete MIDI output port for the MIDI Clock signal.
• “Delay transmission by” slider: Allows you to delay the transmission of MIDI Clock signals.
Negative values mean that the MIDI Clock signal is transmitted earlier. This allows you
to compensate for any reaction delays in external MIDI Clock slaves.
MIDI Time Code (MTC) Settings
• Transmit MTC checkbox: Activates the transmission of MIDI time code.
• Transmit MTC pop-up menu: Determines the MIDI output port for the MTC signal.
Note: If you can avoid it, you shouldn’t send MTC to all ports, as it is very data-intensive.
If possible, use a MIDI port that isn’t being used for anything else.
MIDI Machine Control (MMC) Settings
• Transmit MMC checkbox: Select this checkbox to enable transmission of MIDI Machine
Control (see
). These commands are then sent whenever you
operate the transport functions (Start, Stop, Rewind, and so on) of Logic Express.
MMC is normally used when Logic Express is running as a slave to an external master
(such as an ADAT), and you want to control the external master’s transport functions
from Logic Express. Logic Express therefore acts as MMC master and MTC slave
simultaneously. If you want to use the external master’s transport controls, you don’t
need to use MMC. In this situation, Logic Express follows the MTC master as a slave.
You can also use MMC to place tracks on the MMC slave device into Record-Enabled
mode.
• Listen to MMC Input checkbox: Select this checkbox to control Logic Express by MMC
(MIDI Machine Control) and so-called Full Frame Messages.
Logic Express recognizes these commands when listening to MMC Input:
• Play
• Deferred Play
• Stop
Deferred Play is a special command for mechanically slow synchronization slaves such
as reel-based tape recorders. Rather than having the machine play immediately, it is
asked to reach the desired SMPTE position before playback is started. There is no
noticeable difference in the response of Logic Express to the Play and Deferred Play
commands, as Logic Express can locate to any position almost instantly.
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Chapter 42
Project Settings in Logic Express