8

444 Glossary
time code A format (and signal) for assigning a unique, sequential time unit to each
frame of video or project position. The SMPTE time code format, for example, is
measured in hours : minutes : seconds : frames and subframes.
timing Measure of the ability to play notes at the right time. Timing can also refer to
synchronization between events, regions, and devices.
toggle To switch between two states such as on or off (applies to windows, parameter
values, and so on).
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.
transposition Transposition is the act of changing the pitch of an audio or MIDI region
(or event) by a number of semitones.
treble Refers to high frequency sounds or components within a sound. See frequency.
Undo function Function which reverses the previous editing operation.
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.
velocity Force at which a MIDI note is struck; controlled by the second data byte of a
note event.
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.
VU meter Abbreviation for Volume Unit meter. An analog meter used to monitor audio
levels.
WAV, WAVE The primary audio file format used by Windows-compatible computers. In
Logic Express, all recorded and bounced WAV files are in Broadcast Wave format, which
includes high-resolution timestamp information that stores positional information. This
makes it easy to align these files in other audio and video applications.
waveform A visual representation of an audio signal. Waveform graphics run from left
to right, and are centered on a horizontal line. Louder portions of the waveform
(amplitude peaks) are indicated as taller spikes or higher curves in the waveform.
wet/dry mix Refers to the ratio of a signal that effects have been added to (wet), and
the original, unprocessed signal (dry).