Chapter 6: Editing Programs
64 S4 Plus Reference Manual
• Controllers (A, B, C, D) Four incoming MIDI controllers can be recognized by
the S4 Plus and used as modulation sources. These controllers are assigned as
A–D in Global Mode (see Chapter 8). In Program Play Mode and Mix Play Mode,
the four Quad Knobs can be used to control these directly.
• Tracking Generator This accepts the output of a signal processed by the
Tracking Generator module (see page 79).
• Stepped Tracking Generator This accepts the output of a signal processed by
the Tracking Generator module in stepped mode (see page 79).
Modulation Destination
Quad Knob [2] selects one of several modulation destinations. You can find out more
about these parameters and how they affect the sound in their respective sections (for
example, to learn how Pitch Envelope Attack affects the sound, see page 70 on Pitch
Envelopes).
• Pitch • Filter Cutoff • Amplitude
• Effect Send • PLFO Speed • PLFO Amp
• PLFO Delay • PENV Delay • PENV Attack
• PENV Decay • PENV Sustain Decay • PENV Release
• PENV Amp • FLFO Speed • FLFO Amp
• FLFO Delay • FENV Delay • FENV Attack
• FENV Decay • FENV Sustain Decay • FENV Release
• FENV Amp • ALFO Speed • ALFO Amp
• ALFO Delay • AEnvelope Delay • AEnvelope Attack
• AEnvelope Decay • AEnvelope Sustain Decay • AEnvelope Release
• AEnvelope Amp • Portamento Rate
Modulation Level (-99 to +99)
At +00, the modulation source has no effect on the destination. Higher positive values
increase the amount of modulation. Negative values also increase the amount of
modulation, but with negative phase (i.e., if the modulation would normally be
increasing with depth set to a positive number, the modulation would instead be
decreasing at that same moment had the depth been set to a negative number).
Gate Mode (Off or On)
The Gate Mode function is available only on modulation routings 1 through 4. When
Gate Mode is on, the Modulator will only be routed while notes are being played. In
other words, you can gate the effect of the Modulator so that it stops when you are
not playing any notes. This can be used on sounds with medium to long release
times, where an interesting effect (like tremolo) is intended to be active while holding
notes down, but deactivated as the sound is fading away after being released.
Quantize Mode (Off or On)
The Quantize Mode function is only available in modulation routings 5 and 6. When
Quantize Mode is on, the modulation effect will be stepped. When off, the effect will
be smooth, or linear.
Example:
If you were to route the Modulation Wheel to Pitch
with an amplitude of +99, moving the Mod Wheel while the Quantize parameter was
off would cause the pitch of a held note to slide up, much the same way it does when
the Pitch Bend Wheel is used. However, moving the Mod Wheel while the Quantize
parameter was on would cause the pitch of a held note to rise in half-step increments.
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