
16
VCF MOD (MODULATION OF THE VOLTAGE CONTROLLED FILTER)
SOURCE (SOURCE SWITCH)
ThisswitchallowsyoutochoosewhichModulationSourcewillbeappliedto
thelter.
EG:EGisshortforEnvelopeGenerator.Whentheswitchisinthisposition,
theAttack,Sustain,andDecaycharacteristicsoftheEnvelopeGenerator
will be used as the modulation source.
LFO: LFO is short for Low Frequency Oscillator. The LFO produces a cyclic
change that can be used to create a repeating effect. When the switch is in
this position, the LFO will be used as the modulation source.
AMOUNT (AMOUNT KNOB)
Once a modulation source has been selected, the Amount knob can be used to
control the depth of the modulation effect.
POLARITY (POLARITY SWITCH)
The Polarity of the VCF modulation source can be reversed. That is, the nor-
mally negative portions will become positive, and vice-versa. For example,
insteadofusingtheAttackportionoftheEGtoboosttheFilterCutofffrequen-
cy, inverting the polarity will allow the Attack portion to lower the Filter Cutoff
Frequency.JustbeawarethatiftheCutoffisalreadysetlow,invertingtheEG
polarity might close the Filter too far, making it appear as if the Werkstatt is not
creating any sound.
[ + ]: PositiveisthenormalpolarityfortheVCFModulationSource.
[ – ]: ThenegativepositionreversestheVCFModulationSource.
FilterModulationchangesthevalueoftheFilter’sCutoffFrequency.Either
theEGortheLFOcanbeusedasaFiltermodulationsource.WhentheEGis
chosenasthemodulationsource,thepolarityoftheEGcanbereversedfor
even greater sound creation options.
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