Apple Logic Pro 9 - Manual (Page 1274)

Core Audio Device Preferences
Logic Pro automatically recognizes any installed Core Audio hardware, and uses the
default settings as defined in the Audio MIDI Setup utility (Applications/Utilities/Audio
MIDI Setup). However, it can be advantageous to optimize the settings for your individual
hardware setup, particularly if you use several audio interfaces or a multiple input/output
device.
• Enabled checkbox: Select this checkbox to enable the Core Audio driver.
• System Memory Requirement display: Indicates the amount of free RAM required (outside
of memory assigned to Logic Pro). The requirement value changes as you alter the
parameters described below.
• Output Device pop-up menu: Allows you to choose between any installed Core Audio
device, including the internal sound hardware. This also includes aggregate audio
devices, consisting of several audio interfaces. See the Audio MIDI Setup Help for
information on aggregate devices.
1274 Chapter 44 Preferences in Logic Pro