7

Glossary 589
modulation matrix The EXS 24 and other Logic instruments contain a grid that allows
you to modulate a number of target parameters with a number of modulators. This
grid is referred to as the modulation matrix.
modulation path A modulation path determines which target parameter will be
modulated by a specific modulator (modulation source).
modulation wheel A MIDI controller found on most MIDI keyboards.
mono Short for monophonic sound reproduction. The process of mixing audio
channels into a single track, using equal amounts of the left and right audio channel
signals. Compare with stereo.
MP3 Abbreviation for MPEG-2 Audio Layer 3. A compressed audio file format,
frequently used to distribute audio files over the Internet.
MS stereo recordings Short for middle-side stereo. Two microphones are stacked on a
stand or suspended from the ceiling so that they are positioned as closely together as
possible. One microphone delivers the middle signal, the other the side signal. If you
want to use MS stereo recordings in Logic, you have to decode them—this can for
example be done with the Direction Mixer plug-in. Also see XY stereo recording.
MTC See MIDI Time Code.
Multi Instrument Object An Object in Logic’s Environment that represents a multi
timbral hardware or software device that reacts to MIDI. The Multi Instrument Object is
essentially 16 Instrument Objects rolled into a single package. Each of these, called sub-
channels (or part-instrument), has a fixed MIDI channel and shares the same port. All
other parameters can be set individually. The purpose of Multi Instrument Object is to
address multi-channel MIDI devices, which receive MIDI data and play different sounds
on separate MIDI channels.
multitimbral This term describes an instrument or other device that can play different
sounds at the same time, using several MIDI channels at the same time.
Multi Trigger mode This term is associated with synthesizers such as the ES 1. In this
mode, a synthesizer envelope usually is retriggered by every note played.
mute Switch off an Audio Object or track’s audio output. You can mute a track by
clicking the Track Mute button in the Track List. The output of an Audio Object is
disabled by clicking the Mute button at the bottom of the channel strip.
nodes Positions in Hyper Draw and automation tracks that mark the positions where
data manipulation begins or ends. Occasionally referred to as points.