Doepfer A-121 12dB Multimode VCF Manual do Utilizador descarregar pdf (Página 8)

A-121

VCF 2

System A - 100

doepfer

Generating vocal effects

With the patch in Fig. 4 (see next page) vocal effects

can be produced, using two A-121 filters.

A sawtooth at around 100 Hz or less is patched into

two A-121 filters. Set Q to a small or medium level,

and use different mid-frequencies for each of the two

filters.

Modulate the VCO and both filters with a triangle wave

LFO at about 1 Hz, but with the voltage input to one of

the filters inverted by an A-175 inverter. Set the

modulation amount for the VCO (Attenuator CV3) and

for the filter (Attenuator FCV2) to a small or medium

value.

You can control the intensity of the modulation with a

dynamic MIDI controller - aftertouch, mod wheel, etc..

Experiment a little with this patch (see next page). With

careful setting up and tweaking, interesting vocal-like

timbres can be produced.

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Doepfer A-121 12dB Multimode VCF Manual do Utilizador Página 8