Korg wavestate native - Filter Parameters; Filter Type Descriptions; Filter Cutoff Parameter; Filter Resonance Parameter

Synthesis page
20
Filter
Type
[Polysix, MS-20 LP, MS-20 HP, 2-pole LP, 2-pole HP, 2-pole
BP, 2-pole BR, 4-pole LP, 4-pole HP, 4-pole BP, 4-pole BR,
Multi Filter]
LP (Low Pass). is cuts out the parts of the sound which
are higher than the cuto frequency. Low Pass is the most
common type of lter, and is used to make bright timbres
sound darker.
HP (High Pass). is cuts out the parts of the sound which
are lower than the cuto frequency. You can use this to make
timbres sound thinner or more buzzy.
BP (Band Pass). is cuts out all parts of the sound, both highs
and lows, except for the region around the cuto frequency.
Since this lter cuts out both high and low frequencies, its
eect can change dramatically depending on the cuto setting
and the oscillator’s multisample.
With low resonance settings, you can use the Band Pass lter
to create telephone or vintage phonograph sounds. With
higher resonance settings, it can create buzzy or nasal timbres.
BR (Band Reject). is lter type–also called a notch lter–
cuts only the parts of the sound directly around the cuto
frequency. Try modulating the cuto with an LFO to create
phaser-like eects.
2-pole LP, HP, BP, and BR: ese produce 12dB/octave slopes
for LP and HP, and 6dB/octave for BP and BR. A classic
synthesizer expander module used this type of lter.
4-pole LP, HP, BP, and BR: ese produce 24dB/octave slopes
for LP and HP, and 12dB/octave for BP and BR. In comparison to 2-pole lters, these create a sharper roll-o beyond
the cuto frequency with more delicate resonance. Many classic analog synths used this general type of lter.
Multi Filter. is is a complex lter which is capable of all of the 2-pole lter types, and many more besides. See “Multi
Filter” on page 22.
MS-20 LP and HP: ese 12dB/octave, self-resonating lters lovingly recreate the distinctive timbral signature of the
classic Korg MS-20. Raising Resonance will cause increasing amounts of saturation and overdrive, creating a more
aggressive tone. Input volume can have a strong eect on this character; for more information, see “Gain” on page 22.
Polysix: is 24dB/octave, self-resonating low-pass lter provides the strong, sweet sound of the classic Korg Polysix.
Cuto
[-4.00 or +8.00…+136.00 or +138.00 semitones]
is controls the cuto frequency of the lter, in semitones mapped to MIDI note numbers (60.00 = middle C). e
frequency in Hz is also shown. e specic eect of the cuto frequency will change depending on the selected Type, as
described above. Most lter types have a range of -4.00 to +138.00, but the MS-20 LP/HP and Polysix range from +8.00
to +136.00.
Resonance
[0.00…100.00%]
Resonance emphasizes the frequencies around the cuto frequency, as shown in the diagram below.
When this is set to 0, there is no emphasis, and frequencies beyond the cuto will simply diminish smoothly.
At medium settings, the resonance will alter the timbre of the lter, making it sound more nasal, or more extreme.
At very high settings, the resonance can be heard as a separate, whistling pitch.
Low Pass
High Pass
Band Pass
Band Reject
Cuto Frequency