Korg PS60 Parameter Manual page 40

Program Edit
Serial and Parallel Routing
Oscillator Filter A (Low Pass)
Oscillator
12db/oct / 24db/oct
Low Pass:
12dB/oct
Low Pass:
24dB/oct
Filter A
Filter Type
The filter will produce very different results depending on
the selected filter type. The selections will change slightly
according to the selected Filter Routing, to show the correct
cutoff slope in dB per octave.
LPF: This cuts out the parts of the sound which are higher
than the cutoff frequency. Low Pass is the most common
type of filter, and is used to make bright timbres sound
darker.
HPF: This cuts out the parts of the sound which are lower
than the cutoff frequency. You can use this to make timbres
sound thinner or more buzzy.
BPF: This cuts out all parts of the sound, both highs and
lows, except for the region around the cutoff frequency.
Since this filter cuts out both high and low frequencies, its
effect can change dramatically depending on the cutoff set‐
ting and the oscillator's multisample.
With low resonance settings, you can use the Band Pass fil‐
ter to create telephone or vintage phonograph sounds. With
higher resonance settings, it can create buzzy or nasal tim‐
bres.
36
Filter B (High Pass)
Filter A (Low Pass)
Filter B (High Pass)
[LPF: Low Pass (12dB/oct),
HPF: High Pass (12dB/oct),
BPF: Band Pass (6dB/oct),
BRF: Band Reject (6dB/oct)]
BRF: This filter type–also called a notch filter–cuts only the
parts of the sound that are directly around the cutoff fre‐
quency. Try modulating the cutoff with an LFO to create
phaser‐like effects.
Filter Types and Cutoff Frequency
Low Pass
High Pass
Band Pass
Band Reject
FilterB
Filter B is available if the "Routing" is Serial or Parallel. Oth‐
erwise, all parameters in this section are unavailable, and
cannot be edited.
The filter B parameters are the same as for filter A ( "Filter
A" on page 36).
Filter1 EG
This displays the Filter EG envelope specified in the Filter1
EG page.
The graphic shows the shape of the Filter EG. You can also
change the shape by using the mouse to drag each of the
squares.
Filter2
This page contains all of the basic settings for Oscillator 2's
Filter A and Filter B. ( "Filter1" on page 35)
Cutoff Frequency