Lexicon
MPX 1 User Guide
8-2
Arpeggiator
The MPX 1 arpeggiator requires a MIDI note source (keyboard, sequencer, etc.)
to be connected to the MIDI IN connector. Once connected it will arpeggiate keys
that are held down. You can use the arpeggiator as a source to control MPX 1
parameters (like SweepFilter fc , for example), but the real fun starts when you
connect a MIDI sound source to the MPX 1 MIDI OUT connector. The
arpeggiator will “play” the sound source. Parameters are provided to allow you
to turn the arpeggiator on and off, connect a clock source to set the arpeggiation
speed, set the order that the notes are played, and control their loudness.
Arpeggiator
Parameter
Range
Description
Mode
Off, Up, Down
Order in which notes will be played
Up-Dn, Rand,
Frwrd, Bkwrd
Fd-Bd
V Src
0-127
Sets velocity value of notes played
or MIDI controller
Clock
Off, On, any internal
Arpeggio speed
OnSrc
Off, On, any internal
Turns arpeggiator on or off
or MIDI controller
OnLvl
0-127
Value at which arpeggiator turns on or off
MIDI Arp 1
MIDI 16th Arp
Arpeggiator Modes and V Src
Off:
Arpeggitator is disabled
Up:
Notes play in ascending or-
der
Down: Notes play in descending
order
Up-Dn: Notes play in ascending,
then descending order
Rand:
Notes play in random order
Frwrd: Notes play in the order they
are held down
Bkwrd: Notes play in reverse order
Fd-Bd: Notes play forward, then
backward
The V Src parameter allows you to
set the MIDI Velocity value for the
arpeggiated notes. The range of this
parameter is 0–127. When set to 0,
the arpeggiated notes will have the
same velocity values that were
played on the MIDI source. This al-
lows you to control the dynamics of
the notes in the arpeggio by how
quickly you strike the keys.
The arpeggiated notes will all have
the same dynamics when V Src is
set to values between 1 and 127 (1 is
extremely soft, 127 is very loud). Try
patching MIDI Mod wheel to V Src.
Move the Mod Wheel to its minimum
position and the arpeggiator will
track your playing dynamics —
move it beyond minimum and it be-
comes a volume control for the
arppeggios.
