Vermona DRM1 MKIII - analog drum synthesizer - Manual (Page 17)

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RESO specifies the intensity of the filter’s resonance and, as a result,
colors the tonal component of the snare sound. Only at higher
values, the filter will start to self-oscillate. This parameter
interacts with ATTACK, whose needle impulse initiates the filter’s
oscillation.
FILTER sets the cutoff frequency of the low pass filter. Presuming the
filter has been excited to oscillate, this control adjusts the pitch of
the snare’s tonal sound component.
NOTE Different kind of percussion sounds are possible, only
by using the snare drum’s filter section but leaving out
the NOISE component. With FILTER and RESO being
fully opened, the result will sound clave-like. By attenu-
ating RESO, this sound turns into a snare resembling a
preset-beat-box from ‘78. Lowering FILTER and combine
it with different RESO settings, leads to creditable
8-toms, congas and bongos. (see “Sound Examples /
Klangbeispiele” on page 52)