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Chapter 6 Filter (VCF)
VCF Type
Determines the filter type used for the VCF section. The filter passes only
a specified range of frequencies while cutting off the rest. There are sev-
eral completely different types, as well as a variety of filter slopes (see
below).
Settings
24db (Low Pass Filter 24dB/octave), 18db (LPF 18dB/octave),
12db (LPF 12dB/octave), bPF (Band Pass Filter), HPF (High Pass
Filter), bEF (Band Eliminate Filter)
24db, 18db, 12db
The Low Pass Filter passes only those frequencies below the specified
cutoff point. Cutoff curves of 24dB/octave, 18dB/octave and 12dB/
octave can be selected.
BPF
The Band Pass Filter passes only those frequencies in the specified
range, with a cutoff curve of 12dB/octave.
HPF
The High Pass Filter passes only those frequencies above the specified
cutoff point, with a cutoff curve of 12dB/octave.
BEF
The Band Eliminate Filter passes only those frequencies outside the
specified frequency range. The Resonance setting (see page 27) deter-
mines the eliminate range.
Cutoff frequency
Frequency
Level
Cutoff range
12dB/oct
18dB/oct
24dB/oct
Range passed
Frequency
Level
Cutoff range Cutoff range
Center frequency
Range passed
Frequency
Level
Cutoff range
Cutoff frequency
Cutoff range
Level
Range passed Range passed
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