DOEPFER A-100 Series Manual

Navegue en línea o descargue pdf Manual para Unidad de control DOEPFER A-100 Series. DOEPFER A-100 Series 8 páginas. Analog modular system, connecting the breakout module to the main module
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DOEPFER A-100 Series Manual
doepfer
Level
Audio
In
FCV 1
FCV 2
FCV 2
QCV
QCV
Audio
Out
System A - 100
A-123
VCF 4
Frequency
Resonance
Module A-123 (VCF 4) is a voltage-controlled high-
pass filter, which filters out the lower parts of the
sound spectrum, and lets higher frequencies pass
through.
The cut-off frequency determines the point at which
filtering takes effect. You can control this manually, or
by voltage control (filter modulation, for instance by
an LFO). Two CV inputs are available.
The cut-off slope is -24 dB/octave. The circuitry uses
a Curtis CEM 3320 chip.
Voltage controlled resonance: on the VCF 4, reso-
nance can be controlled not just manually, but by
voltages as well, right up to self-oscillation. In this
case, the filter behaves like a sine wave oscillator.
A-123
VCF 4
1. Introduction
1