10.6

1169Logic Pro User Guide
audio interface The device used to get sound into and out of your computer. An audio
interface converts analog signals (from microphones or musical instruments, for example)
into digital audio data that can be processed by your computer, and, in the other direction,
converts digital audio data from your computer into analog signals that speakers can
broadcast.
Audio MIDI Setup (AMS) A utility used to configure the audio and MIDI input and output
devices connected to your computer. Logic Pro uses the settings defined in the AMS utility,
which can be found in the Applications/Utilities folder.
audio region A segment of an audio file that can be placed on audio tracks in the Tracks
area. Audio regions appear as colored rectangles in the Tracks area, and are aliases (or
pointers) to portions of audio files. They can be as short as a single sample, or as long as
the underlying audio file. Logic Pro allows you to edit audio regions without altering the
original audio file. See also region and MIDI region.
audio track A track in the Tracks area that is used for playback, recording, and editing of
audio regions. It is routed to an audio channel strip in the Mixer.
Audio Track Editor An editor in Logic Pro that shows a close-up view of part of an audio
track, displaying the audio waveform of the regions on the track. You can move and trim
audio regions, split and join them, and edit them in other ways. You can also quantize and
edit the pitch of audio material in the Audio Track Editor using Flex Pitch. See also Flex
editing.
AudioUnits (AU) The standard macOS format for real-time plug-ins. Audio Units plug-
ins can be used for audio effects, software instruments, and generators. The AU format is
incorporated into the operating system, and installed AU plug-ins can be accessed by all
applicable programs. Logic Pro supports all AU format plug-ins.
Audio Random Access (ARA)Celemony provides an extension of the Audio Units plug-in
standard called Audio Random Access (ARA), which enables a host app and compatible
plug-in to share song structure information (for example, regions and their associated
audio files) and analysis results (including transients and pitch information). Logic Pro
supports ARA 2 compatible plug-ins.
Auto Track Zoom A function in the Tracks area View menu that automatically enlarges the
currently selected track.
automation Refers to the ability to record, edit, and play back the movements of all knobs,
controls, and buttons, including volume faders, pan, EQ, and aux send controls, plus most
effect and instrument plug-in parameters.
automation point The circular indicator on an automation curve that shows the value of
the automation parameter at a particular point in time. You add and edit automation points
to control automation for the parameter.
Automation Curve tool A tool used to bend the line between two automation points,
creating a nonlinear transition between the points.
Automation Select tool A tool used to select automation data and create automation
points at region borders.
Autopunch button A button (with up and down arrows) in the control bar, used to activate
the Autopunch function. See also Autopunch function.