Apple Logic Express 7 - Manual (Page 498)

498 Chapter 21 Control Surface Support
Show Value Units For:
Allows you to adjust whether parameter values will be appended by the measurement
“unit”, where applicable—“Hz” or “%”, for example. You can set this option separately for
Instrument/Plug-in parameters and Volume and other parameters. If you can do without
the value units, the display is less cluttered.
Note: This parameter only applies while editing.
Customizing Control Surfaces
Logic allows you to program new assignments for unsupported control surfaces. This
facility allows you to extend the use of faders, knobs, and switches, either directly or
through the use of modifier commands.
To assign a MIDI control to a parameter:
1 Click the destination parameter that you want to “teach” Logic.
2 Activate Learn by pressing Command-L (default), or via the Logic > Preferences > Control
Surfaces > Learn Assignment for “xxx” menu option (the parameter name is appended to
the menu item text).
3 The Controller Assignments window is opened, with the Learn Mode button enabled.
4 A help tag will indicate what needs to be done next (move control, for example).
5 After the first message has been received, you can assign another MIDI control by
simply clicking the desired parameter and operating the desired MIDI control. This
allows you to learn multiple assignments in one go.
Note: If no MIDI messages are received, releasing the Command (modifier) key(s) leaves
the Learn Mode button enabled, allowing you to immediately retry the generation of
the intended control message. You will need to disable the Learn Mode button
manually, once the procedure is completed.
To abort the learn procedure:
m Either press Command-L a second time, or click the Learn Mode button. You can re-
enable the Learn Mode button to assign a message.
To delete a MIDI control assignment:
1 Click the destination parameter that you would like to delete.
2 Select Edit > Clear from the main menu bar.
To assign a control surface button to a key command:
1 Select the desired key command in the Key Commands window.
2 Click the Learn New Assignment button.
3 Press a control surface button that sends a MIDI message.