Vcf Type - Yamaha AN1x Owner's Manual

HPF
(High Pass Filter Cutoff)
The HPF setting determines the cutoff frequency of the
High Pass Filter. Frequencies above the setting are
passed while those below are cut off. Turning the knob
to the right increases the HPF Cutoff frequency,
resulting in a brighter sound.
Level
Cutoff range Range passed
Cutoff frequency
Settings: 0 ~ 127
This High Pass Filter is applied to the signal after the mixer, and is different than
the one available in the VCF Type.

VCF Type

The VCF Type setting determines the type of filter used
by the VCF. The VCF passes only a specified range of
frequencies while cutting off the rest, to give you
versatile control over the timbre. There are six types of
filters, as described below.
Settings: LPF24, LPF18, LPF12, BPF, HPF12, BEF
LPF24, LPF18, LPF12
The Low Pass Filter passes only those frequencies below the
specified cutoff point. A cutoff curve of 24dB/octave (LPF24),
18dB/octave (LPF18) and 12dB/octave (LPF12) can be
selected.
Level
Cutoff frequency
Frequency
Cutoff range
12dB/oct
18dB/oct
24dB/oct
Frequency
BPF
The Band Pass Filter passes only those frequencies in the
specified range, with a cutoff curve of 12dB/octave.
Level
Cutoff range
Center frequency
HPF12
The High Pass Filter passes only those frequencies above the
specified cutoff point, with a cutoff curve of 12dB/octave.
Level
Cutoff range
Cutoff frequency
BEF
The Band Eliminate Filter passes only those frequencies
outside the specified frequency range. The Resonance setting
(see page 65) determines the eliminate range.
Level
Range passed
Center frequency
The filters listed above apply to the signal output from the HPF located between
the Mixer and VCA. For more information about the signal path, see page 10.
67
Range passed Cutoff range
Frequency
Range passed
Frequency
Cutoff range Range passed
Frequency