Apple Logic Express 9 - Manual (Page 1246)

• MTC Pickup Delay field: This parameter should generally be set to zero, to ensure the
quickest possible pickup time while Logic Express is in MTC (MIDI Time Code) Sync
mode. There are, however, some devices that seem to transmit imprecise MTC
commands when first started. As a result, synchronization may be unreliable, and there
could be an offset every time synchronization is established. In such situations, you
can set a delay time before incoming MTC is picked up. Essentially, Logic Express will
ignore the incoming MTC commands that occur in this time period. A (frame) value of
25 to 30 corresponds to a delay of about one second, depending on the frame rate.
Use this parameter when synchronized to hard disk recorders and other devices, if
synchronization doesn’t appear to be consistent.
• Delay MTC Transmission By field: This parameter allows you to delay the transmission
of MIDI timecode. Negative values result in MTC being transmitted earlier. This enables
you to compensate for any reaction delays (to incoming MIDI timecode) in external
MTC slave devices.
• MMC Uses pop-up menu: Choose between the following settings:
• 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) checkbox: The All checkbox sends MMC to all ports. The field to
the right allows you to specify an output port ID.
• Input ID (Transport) checkbox: 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” checkbox: Enables transmission
of MMC Locate commands when the Stop command is pressed twice (using the Stop
button in the Transport bar, or using the Stop key command).
• Transmit Locate Commands When: “Dragging regions or events” checkbox: If this option
is enabled and Logic Express is stopped (not in Playback 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” checkbox: If this option is selected,
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 button: Click this button to open the MIDI Sync Project Settings
window.
1246 Chapter 43 Preferences in Logic Express