Apple Logic Pro 8 - Manual (Page 965)

Chapter 40 Project Settings and Preferences 965
 MMC standard messages: The MIDI MMC specification is strictly followed.
 Old Fostex Format: The old Fostex format is used for MIDI Machine Control.
 Output ID (Transport): The All checkbox sends MMC to all ports. The field to the right
allows you to specify an output port ID.
 Input ID (Transport): The All checkbox sends MMC to all ports. The field to the right
allows you to specify an input port ID.
 Transmit Locate Commands When: Pressing Stop twice: This checkbox enables
transmission of MMC Locate commands when the Stop command is pressed twice
(on the Transport Stop button, or with the Stop key command).
 Transmit Locate Commands When: Dragging regions or events: If this option is enabled
and Logic Pro is stopped (not in Play or Record mode), MMC locate commands are
sent with the position of a region that is dragged in the Arrange area.
 Transmit Record enable commands for audio tracks: If this option is enabled, MMC
record enable/disable commands are also sent when audio tracks are record enabled
(armed) or disabled. In addition, any received MMC Record enable commands will set
the record enable status of audio tracks.
 MIDI Sync Project Settings: Click this button to open the MIDI Sync Project Settings
window.
Reset Messages Preferences
This tab is only included for compatibility with older MIDI hardware. Logic Pro handles
MIDI Reset Messages automatically and intelligently, so you should generally make sure
that all of these options are switched off (this the default).
All selected checkboxes will send a reset message—for the selected controller type—to
all MIDI outputs. This reset message is sent on cycle jumps and when playback begins,
but the use of these options shouldn’t be necessary.