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the diagrams below illustrate the relationship between keyboard posi-
tion and cut-off frequency at the 1:1 and 2/3 settings:
1:1 Tracking
gain
gain
2/3 Tracking
DRIVE
Activating DRIVE (Shift + KB track) adds distortion to the
Filter stage. the 1, 2 and 3 settings represent low, medi-
um and high amounts of drive respectively.
Using Drive with high Filter Resonance settings will
often produce fun and/or interesting results.
LFO AMt
the filter frequency can be controlled by the low
frequency oscillator, the LFO. the morphable LFO AMT
knob sets the amount of modulation. the exact effect
of the LFO Amt parameter depends on how the LFO
section is set up, see page 38.
VEL / MOD EnV
the two-way VEL / MOD ENV knob governs the
amount of modulation to the filter frequency either by
keyboard velocity or by the modulation envelope. At
the center, "12 o'clock", position no Velocity or Mod
Env modulation is applied to the filter.
turning the knob counter-clockwise from the 12 o'clock zero setting
gives an increasing amount of velocity control. turning the knob
clockwise from 12 o'clock, the modulation envelope will modulate the
frequency with an increasing amount.
thE EnVELOPES
the envelopes are used to "shape the sound" over time, from when you
first play a key, to after it has been released. the diagram below illus-
trates the role of each parameter - attack, decay and release - through-
out the course of the total envelope time, for both the Modulation and
Amplifier envelopes.
amount
freq
key down
freq
MOD EnVELOPE
AttACK
Attack sets the time it should take for the envelope to reach maximum
level after you have pressed a key. turn the ATTACK knob clockwise to
increase Attack time.
DECAy
When the attack phase is over, and the key is still held down, the enve-
lope amount begins dropping down to zero again. Use the DECAY knob
to set the time this should take. If the Decay time is set to maximum, the
envelope will be in Sustain mode, meaning that it stays on a constant
value, until the key is released.
RELEASE
When the key is released, the envelope enters the release stage. the
release time is set with the RELEASE knob.
VELOCIty
When the Mod Env VELOCITY LED is lit, the amplitude of the Modulation
Envelope is controlled by the velocity with which the keys are played.
Play harder and the envelope will modulate the parameter(s) more.
attack (time)
decay (time)
the Modulation Envelope (MOD ENV) is a three-stage
envelope which can be applied to the Osc Ctrl param-
eter and/or to the Filter cut-off frequency.
Used for modulating Osc Ctrl, it can perform a wide
variety of time-based alterations, depending on which
oscillator configuration is used.
With the filter it is used to modulate the tone color
over the duration of a note, for instance creating a
bright attack by modulating the filter at the start of the
note.
7. Synth
| 37
time
release (time)
key up
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