10.6

Table Of Contents
588Logic Pro Instruments
Assign Logic Pro Ultrabeat MIDI controllers
The MIDI Controller Assignments area lets you assign any MIDI controller shown in the
menus to each of the four controller slots—CtrlA, B, C, or D.
These assignments enable external MIDI controller hardware—such as sliders, knobs,
aftertouch, or the modulation wheel of your MIDI keyboard—to control via modulation
sources in Ultrabeat.
Assign a controller
In Logic Pro: Click a CtrlA–D pop-up menu, then choose the controller name or number
that you want to use.
Learn a MIDI controller assignment
1. In Logic Pro, open the control menu (CtrlA–D) that you want to assign, then choose the
Learn menu item.
2. Move the controller on your MIDI keyboard or MIDI controller unit.
Note: If no suitable MIDI message is received within 20 seconds, the selected control
reverts to the previous value/assignment.
Use Logic Pro Ultrabeat LFOs
Two identical LFOs are available as modulation sources in the mod pop-up menus.
The LFO (low frequency oscillator) signal is used as a modulation source. In an analog
synthesizer, the LFO frequency generally ranges between 0.1 and 20Hz, which is outside
the audible frequency spectrum. Therefore, this type of oscillator is used only for
modulation. The speed of the LFO in Ultrabeat can reach up to 100Hz, which affords a
number of possibilities that analog synthesizers don’t offer.