Vermona Modular TwinCussion
A duophonic percussion/drum module which offers you two
individual, almost identical voices. Each of them has an oscillator
with selectable waveforms as well as an attack-decay envelope which
simultaneously can modulate the pitch and the VCA.
A large number of sockets is available which not only are used for
modulating and triggering the drums but also emit any oscillator
waveform and envelopes. That is utterly useful!
The first difference between both voices are the available
waveforms: voice A offers square, triangle and sine, while voice B
has noise, square and sine. For atonal noisy sounds like hi hats
and anything cymbal voice B is more suitable.
The wave forms are switch selectable and simultaneosuly available
at individual outputs i.e. you can process the audio signals
exernally. Using the module's EG CV outputs plus two external VCAs
you can re-create or alter the signal flow. Envelope signals and
audio sources are available!
For controlling the frequency there's a hi/lo switch alternating
between bass and treble, then a tune control and a modulation
attenuator which scales either the envelope or a nexternal CV.
besides individual inputs (A VCO and B VCO) there's also a common
CV input VCO A+B which addresses both voices simultaneosuly. A VCO
is normalized to the VC CV input A VCA, analogical for channel
The second difference is in the envelopes. Voice A has an
attack-decay envelope generator with manually adjustable times.
Voice B has a decay envelope with fixes attack time but with
voltage control of decay time via EG 2 input and the CV EG2
The envelope generators are able to modulate not only the pitch but
simultaneously also the level. For that reason there's an second
attenuator which altternately detemines the intensity of an
external CV (see above).
Each voice has an individual audio output, although OUT B works
as a mix output when no cable is plugged to OUT A.
3U Eurorack module, 22HP wide, <40mm deep
current draw: 105mA at +12V and 70mA at -12V
gate inputs for envelopes EG 1 and 2
CV inputs: EG2, VCO A+B, A VCO, B VCO, A VCA, B VCA
outputs: EG1, EG2, A square, A triangle, A sine, B noise, B square,
B sine, OUT A, OUT B (+A)