Apple Logic Pro 8 - Manual (Page 978)

978 Glossary
control surface A hardware device that communicates with Logic Pro via MIDI (or USB,
FireWire, or via a networking connection). It can be used to write automation data and
control Logic Pro parameters, such as mixing levels and panning, effects and
instruments, plus transport and navigation functions, amongst others.
Controls view All Logic Pro plug-ins (and Audio Units) offer a non-graphical alternative
to the Editor views of effect and instrument parameters. The Controls view is accessed
via the Controls item in the plug-in header’s View menu at the top of each plug-in
window. This view is provided to allow access to additional parameters and to use less
onscreen space.
Core Audio Standardized audio driver system for all Macintosh computers running
Mac OS X version 10.2 or higher. Core Audio is an integral part of Mac OS X, allowing
access to all audio interfaces that are Core Audio compatible. Logic Pro is compatible
with any audio hardware that offers Core Audio drivers/support.
Core MIDI Standardized MIDI driver system for all Macintosh computers running
Mac OS X version 10.2 or higher. Core MIDI is an integral part of Mac OS X, allowing the
connection of all MIDI devices that are Core MIDI compatible. Logic Pro is compatible
with any MIDI hardware that offers Core Audio drivers/support.
count-in Beats heard prior to the start of a recording (or playback).
cueing Monitoring (hearing playback) while fast-forwarding or rewinding.
cutoff frequency Frequency at which the audio signal passing through a low or
highpass filter is attenuated by 3 dB.
cutting The act of reducing a level, or frequency, when using EQ or other filters. Also
used to describe physically dividing and removing sections of files, regions, and so on
(see boosting and attenuation).
Cycle function A function in Logic Pro which constantly repeats the area between the
locator positions. To turn on Cycle mode, click the Cycle button in the Transport. The
Cycle function is useful for composing a part of a project or editing events, as
examples. The cycle area is shown as a green stripe in the top part of the Bar ruler.
DA converter or DAC Short for digital/analog converter; a device that changes an
analog signal into a digital signal.
data bytes These define the content of a MIDI message. The first data byte represents
the note, or controller number; and the second the velocity, or controller value.
DAW Acronym for Digital Audio Workstation. A computer used for recording, mixing,
and producing audio files.