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Chapter 6: Editing Programs
and at the same speed. Because of this, modulating the LFO Speed using a voice -
specific source (such as velocity or one of the envelopes, for example) will have no
effect (you will be allowed to do this, but you won't hear any difference). This is
because these modulation sources are meant for polyphonic purposes. These
include: Note Number, Velocity, Release Velocity, PLFO, FLFO, ALFO, PENV,
FENV, AENV, Random, Trig Rate and Tracking Generator. However, modulation
sources which are not voice-specific will still have an effect while the LFO Trigger is
set to MONO. These include: Aftertouch, Mod Wheel, Pitch Wheel, MIDI Volume,
Sustain Pedal, Pedal 1, Pedal 2, and Controllers A—D.
Poly. Each voice's LFO is independent. If you hold a chord, some voices' LFOs will
be moving in one direction while others move in the other direction. If the LFO Speed
is being modulated (by one of the envelopes, for example), the LFO's of each voice
may be running at different speeds.
Key Mono. This is identical to MONO, but whenever a new note is played, the LFO is
retriggered, instead of continuing from wherever it may be in its cycle.
Key Poly. This is almost identical to POLY, but whenever a new note is played, the
LFO is retriggered, instead of continuing from wherever it may be in its cycle.
Pitch LFO (Page 2)
Level (00 to 99)
This is the base output level of the Pitch LFO. If you want to have a constant value of
vibrato, even without using the Mod Wheel or Aftertouch, set LEVEL above 00. The
Mod Wheel and Aftertouch will add or subtract from this base level. Example: If Level
is set to 10 and the Mod Wheel parameter is set to 10, there will always be some
vibrato, and raising the Mod Wheel will add more vibrato. On the other hand, if the
Mod Wheel parameter is set to -10, raising the Mod Wheel to the top will cancel out
all vibrato.
Mod Wheel (-99 to 99)
This is the modulation amount of the Mod Wheel over the Pitch LFO's Level. A
positive value raises the level when the Mod Wheel is moved up, and lowers the level
when moved down. Negative settings of this parameter will decrease the output level
of the PLFO as the Mod Wheel is raised. Since the output level of the PLFO cannot
be less than zero, a negative setting of the Mod Wheel parameter will have no effect
unless either the Aftertouch or the Level is set to raise the PLFO output. If both the
Level and Aftertouch are set to 00, and the Mod Wheel parameter is set to -99, the
Mod Wheel will have no effect on the vibrato from the PLFO.
Aftertouch (-99 to 99)
This is the modulation amount of Aftertouch over the Pitch LFO's Level. A positive
value raises the level as more Aftertouch is applied. A negative value will lower the
amount of PLFO level as more Aftertouch is applied.
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S4 Plus Reference Manual
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