Logic Pro 9 User Manual - Help Library - Apple

1340 Glossary
Transform window Logic Pro editor that lets you define a set of conditions and operations
that are used to select and manipulate specific MIDI events.
transient Position in an audio recording where the signal becomes a lot louder—over a
short time span (a signal spike, in other words). As this is typical for drum recordings,
transients can be used to indicate where beats occur in an audio signal.
transient detection A process where audio files are analyzed for transients the first time
you enable a track for flex time editing. See flex time editing.
transient marker A marker that denotes a significant point or peak in an audio file.
Transport bar A field shown at the bottom of the Arrange window, used to control
recording and playback functions. The Transport bar offers Record, Pause, Play, Stop, and
Rewind/Forward buttons plus other functions. You can also open independent Transport
bar windows by choosing Window > Transport (Command-7).
transposition Transposition is the act of changing the pitch of an audio or MIDI region
(or event) by a number of semitones.
Transposition track Global track component that shows transposition events.
treble Refers to high-frequency sounds or components within a sound. See frequency.
Undo function Function that reverses the previous editing operation. The Undo History
allows multiple undo steps to be made.
unicode Fundamentally, computers just deal with numbers. They store letters and other
characters by assigning a number for each one. Unicode provides a unique number for
every character, no matter what the platform, no matter what the program, no matter
what the language.
varispeed A way of speeding up or slowing down the entire project, similar to the original
varispeed feature of tape machines.
velocity Force at which a MIDI note is struck; controlled by the second data byte of a
note event.
Velocity tool This tool, found in the Logic Pro MIDI editors, allows the velocity of individual,
or grouped, note events to be adjusted.
Video track A global track component that allows the viewing of video clips.
virtual memory Area of the hard disk used as an extension of RAM memory by the
computer. The disadvantage is its very slow access time, in comparison to physical RAM.