To use specific audio hardware with Logic, the hardware’s driver needs to be installed, activated, and configured correctly. This is done via the Audio > Audio Hardware and Drivers dialogs, which offer three different panes: Core Audio, DAE, and Direct TDM. In Mac OS X,
all audio devices are accessed via Core Audio, which is an integral
part of the Apple operating system. Logic is compatible with any
hardware which has a Core Audio driver. More importantly, Logic
automatically recognizes any Core Audio hardware and will use the
default settings as defined in the OS X Audio MIDI Setup utility
(Applications > Utilities > Audio MIDI Setup). Logic also supports
DAE (Digidesign Audio Engine) and Direct TDM, which are the drivers
for many different Digidesign cards and are primarily used only for
the operation of TDM hardware and access to its onboard DSP.