Korg MS2000R manual Page08 Filter

Parameter Guide

■FILTER

Here are the filter-related parameters.

Page08: FILTER

A: Type  FILTER TYPE  [24LPF...12HPF]

Select the filter type.

12LPF (–12dB/oct), 24LPF (–24dB/oct)

LPF (Low Pass Filter) is the most commonly used type of file, which allows the frequencies lower than the cutoff fre- quency to pass and cuts the higher frequencies.

Raising the cutoff frequency (“Cutoff” value) will produce a brighter sound.

LPF (Low Pass Filter)

–12dB/oct

–24dB/oct

Frequency

Cutoff

C: Resonance  RESONANCE  [000...127]

Set the resonance of the filter.

This will emphasize the overtones near the cutoff frequency specified by “Cutoff,” adding a distinctive character to the sound. Increasing this value will increase the effect.

The effect of resonance

LPF

HPF

BPF

Low resonance value	High resonance value
D: EG 1 Int  EG 1 INT 	[–63...+63]

This sets the depth at which EG1 will modulate the cutoff frequency to produce time-varying changes in cutoff fre- quency.

Positive (+) values will produce a correspondingly greater

Program parameters

12BPF (–12dB/oct)

BPF (Band Pass Filter) allows a frequency band in the region of the cutoff frequency to pass, and cuts the remain- ing frequencies. It is used when you wish to emphasize only a specific portion of the frequency range.

BPF (Band Pass Filter)

change.

Cutoff

Cutoff frequency specified by “Cutoff”

	Int=+32		Int=+63
Note on		Note on Note off
	Note off

Int=0

Time

Frequency

Cutoff

12HPF (–12dB/oct)

HPF (High Pass Filter) allows frequencies above the cutoff frequency to pass, and cuts the lower frequencies. Use this when you wish to make the sound thinner. However if the cutoff frequency is raised excessively, the volume will decrease significantly.

HPF (High Pass Filter)

Frequency

Cutoff

Negative (–)values will produce a correspondingly greater change in the opposite direction.

Cutoff
Cutoff frequency		Int=–32		Int=–63
					Int=0
specified by
“Cutoff”
		Note off
			Note on Note off
	Note on
						Time
E: Vel Sense					[–63 +63]...

This specifies how velocity (keyboard playing dynamics) will affect the cutoff frequency.

With positive (+) settings, the cutoff frequency will rise as you play more strongly.

With negative (–)settings, the cutoff frequency will fall as you play more strongly.

B: Cutoff  CUTOFF  [000...127]

Set the cutoff frequency.

Increasing this value will raise the cutoff frequency.

“Cutoff” can be varied by time-variant change produced by EG1, by keyboard playing dynamics (velocity), and by note location (keyboard tracking). The depth of each of these effects is set by Page 08D: FILTER “EG 1 Int,” Page 08E: FILTER “Vel Sense,” and Page 08F: FILTER “KBD Track” respectively.

If the “Cutoff” value is lowered, the volume may be extremely low, or you may hear no sound at all.

F: KBD Track  KBD TRACK  [–63...+63]

This specifies how keyboard tracking (the keyboard location that you play) will affect the cutoff frequency.

With positive (+) settings, the cutoff frequency will rise as you play upward from the C4 note, and fall as you play downward. With a setting of +48, the change in cutoff fre- quency will be proportionate to the change in pitch.

With negative (–)settings, the cutoff frequency will fall as you play upward from the C4 note, and rise as you play downward.

With a setting of 0, keyboard tracking will not affect the cut- off frequency.

Keyboard Track operates according to the pitch that is controlled by pitch bend, transpose, and Mod Sequence. It is not affected by pitch changes produced by vibrato or Virtual Patch.

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