Apple Logic (1.1) User Manual
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Glossary
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Audio Units (AU) Audio Units is the standard format for real-time plug-ins running on
Mac OS X. It can be used for audio effects and software instruments. The Audio Unit
format is part of the Mac OS X operating system. Once installed, Audio Unit plug-ins
can be accessed by all programs simultaneously. Logic supports all Audio Unit format
plug-ins.
Audio window Logic window used for a number of audio file handling and conversion
tasks.
Autoload Song Song with your favorite settings and preferences. It loads automatically
when you launch Logic, and serves as a starting point for your songs and projects.
automation Automation is the ability to record, edit, and play back the movements of
all knobs, controls and buttons, including volume faders and pan, EQ, and Aux send
controls plus almost all effect and instrument plug-in parameters.
Aux Object Audio Object in the Environment’s Audio layer. Aux Objects are similar to
the Bus Objects, but are more flexible. Unlike Bus Objects Aux Objects also have Sends
of their own, allowing you to form complex signal paths
bar In musical notation, a bar is a measure that contains a specified number of beats,
and establishes the rhythmic structure of a musical piece.
Bar Ruler Ruler found at the top of the Arrange, Matrix, Hyper and Score windows. It
displays musical time units including bars, measures, beats and beat divisions. It is used
to set and display the song position, the cycle and autodrop locators, as well as
markers.
beat A musical time interval: “the beat is the regular rhythmic pulse in a composition
that people tap their feet to”. Usually a quarter note.
beats per minute See bpm.
bit depth The number of bits a digital recording or digital device uses. The number of
bits in each sample determines the theoretical maximum dynamic range of the audio
data, regardless of sample rate. Also known as bit resolution, word length or bit rate.
bit rate See bit depth
bit resolution See bit depth
bounce To process recorded or streamed MIDI and/or Audio Regions with any applied
effects, such as delay or compression, combining them into one audio file. In Logic, you
can choose between Realtime and Offline bouncing. Offline bouncing is faster, but
doesn’t allow you to apply live automation or record real time audio input.
Bounce button You can bounce the output of any Output Object to an audio file by
clicking the Object’s Bounce button. See also bounce.