Vermona PERfourMER MKII - quad analog synthesizer User Manual
Page 13
RESONANCE
Resonance is a feedback circuit within the filter that emphasizes the cut-
off frequency. Higher values can color the sound significantly, which is
regularly used for resonant bass sounds in Acid-House and Techno.
With values higher than 3 o' clock, the filter will start to self-oscillate,
generating a sine wave with the cutoff frequency. This sound can even
be played chromatically over a range of approx. three octaves, depend-
ing on the TRACK switch's position. Here, it makes sense to disable any
envelope modulation when playing the self-oscillating filter.
EG INT
This control sets the intensity of positive or negative modulation
towards the cutoff frequency carried out by the ADSR envelope genera-
tor. In its center-position, cutoff-modulation is turned off. This control
offers a center-catch.
LFO INT
specifies the intensity of cutoff-modulation by the LFO.
TRACK
The tracking switch sets the filter-tracking by the keyboard between 0%
(off), 50% (half) and 100% (on). With active tracking, the cutoff frequency
increases with higher notes. This makes it possible to play deeply fil-
tered sounds avoiding too gentle or thin results at higher octaves. Set-
ting tracking to 100% will allow playing a self-oscillating filter chromati-
cally within a certain range.
Filter-FM
The cutoff-frequencies of filter 2,3 and 4 can be modulated by the prior
located synthesizer channel. Use the FM-controls 1 (
), 2
(
), 3 (
) of synthesizer channels 2-4 to set the inten-
sity for the frequency modulation. Set to center, modulation will be
turned of. Turning the control to the right will increase the modulation
intensity.
Owner's Manual VERMONA PERfourMER MKII
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