Apple Logic Express 9 - Manual (Page 1144)

Tip: Logic Express also supports manual or “human” sync, when slaved. This is not a
synchronization protocol per se, but enables Logic Express to follow tempo changes
in real time. As an example, it could chase a live drummer. See
Using the Tempo
Interpreter Window .
The Synchronization Master and Slave Relationship
In all synchronization situations, regardless of the simplicity or complexity of your studio
configuration, the following rules apply:
• There can only be one synchronization master.
• The synchronization master sends time code information (synchronization signals) to
one or more synchronization slaves.
Logic Express is capable of acting as master or slave, as are many devices.
Important: In many (if not most) cases, you will need to manually set each
synchronization-capable device—including Logic Express itself—to act as master or slave.
If you don’t do this, there will be multiple master devices in your system, which will result
in synchronization errors.
Using External Synchronization
When you first open Logic Express, manual synchronization mode is automatically turned
off, and Logic Express is in Internal Sync (master) mode. Activating the Transport bar’s
Sync button synchronizes Logic Express to the chosen synchronization source.
If Logic Express is running by itself (no devices or applications capable of synchronization
are in use), or is acting as the synchronization source, it is the synchronization master
device. In this situation, the Transport bar’s Sync button should not be activated.
The Transport bar Sync button is not displayed by default.
To view the Transport bar Sync button
1 Control-click the Transport bar, then choose Customize Transport Bar from the shortcut
menu.
2 Select the Sync checkbox toward the bottom of the Modes and Functions column (right
column), and click OK.
1144 Chapter 39 Synchronizing Logic Express