Apple Logic Pro 8 - Manual (Page 985)

Glossary 985
interface 1) A hardware component such as a MIDI or audio device that allows
Logic Pro to interface (connect) with the outside world. You need an audio or MIDI
interface to get sound or MIDI into and out of your computer. Also see audio interface.
2) A term that is used to describe graphical elements within Logic Pro that you can
interact with. An example would be the Arrange, where graphical interface elements
such as regions are interacted with to create a project, within the overall Logic Pro
interface.
interleaved audio file Logic Pro typically handles multi-channel (stereo or surround)
audio files as interleaved (unless using DAE hardware). Edits to interleaved files affect
both (or all, if surround) channels equally. Also see split channel audio files.
key The scale used in a piece of music, centered around a specific pitch. The specified
pitch is called the root of the key. Can also refer to a black or white key on a musical
(MIDI) keyboard.
key command Function which can be executed by pressing a specific key (or key
combination) on your computer keyboard or MIDI controller.
Key Commands window The Key Commands window is used for the assignment of
key commands to computer keys or to MIDI messages.
key focus The selected, active window, is said to have key focus in Logic Pro. Many key
commands will only function when a window has key focus. The Inspector also updates
to reflect the parameters of a window with key focus.
latency You may notice a delay between playing your keyboard and hearing the
sound. This is a form of latency. A variety of factors contribute to latency, including the
audio interface in use, audio and MIDI drivers. One factor under your control, however,
is the I/O buffer size, which is set in the Devices preferences.
legato Method of musical performance that smoothly connects one note to the next.
level meter A meter that monitors audio input or output levels to or from your
computer. You use the level meters in Logic Pro when recording, arranging, and editing
audio files, and when creating a mix.
Library Window (or tab in the Media area of the Arrange window) used to handle all
settings files for channel strips, effects, and instruments.
Link button Button in the top left corner of most Logic Pro windows that features the
chain link icon. It controls the linking between different windows.
Lists area Area in the Arrange window, providing four independent tabs that show a
listing of the following types of data: events, regions, markers, tempo changes, and
time/key signatures.