Rhythm Edit

Filter

These parameters are settings for the TVF (Time Variant Filter). They modify the timbral character of the tone by adjusting the brightness and

fatness of the sound.

Parameter

Value

Description

 

 

 

Filter Type

OFF, LPF,

Type of filter

 

BPF, HPF,

A filter cuts a specific frequency region of the sound to modify the brightness or thickness of the

 

PKG, LPF2,

sound.

 

LPF3

OFF: A filter will not be used.

 

 

LPF: Low Pass Filter. Cuts the region that lies above the cutoff frequency. The sound will become

 

 

more mellow as the high frequency region is cut. This is the most commonly used type of filter.

 

 

BPF: Band Pass Filter. Leaves only the region in the vicinity of the cutoff frequency, and cuts the rest.

 

 

Suitable for creating sounds with a distinctive character.

 

 

HPF: High Pass Filter. Cuts the region that lies below the cutoff frequency. Suitable for creating per-

 

 

cussion instrument sounds that have a distinctive high range.

 

 

PKG: Peaking filter. Emphasizes the region in the vicinity of the cutoff frequency. You can create a

 

 

wah effect by using an LFO to cyclically modulate the cutoff frequency.

 

 

LPF2: Low Pass Filter 2. Cuts the region that lies above the cutoff frequency. This lets you leave the

 

 

cutoff frequency fixed, and use the TVF envelope settings to vary the depth of the cutoff. Since this

 

 

does not impair the feeling of energy of the sound, it is effective for acoustic-type sounds.

*The resonance setting is ignored.

LPF3: Low Pass Filter 3. Cuts the region that lies above the cutoff frequency. This filter cuts the high frequency region more gently than LPF2. Since this does not impair the feeling of energy of the sound, it is effective for acoustic-type sounds.

*The resonance setting is ignored.

Cutoff Frequency

0–127

Frequency (cutoff frequency) at which the filter will begin affecting the frequency content of the wave-

 

 

form

 

 

If the Filter Type is LPF/LPF2/LPF3, reducing the cutoff frequency will diminish the higher over-

 

 

tones, producing a more mellow sound. Raising the cutoff frequency will brighten the sound.

 

 

If the Filter Type is BPF, the cutoff frequency value will change the harmonic content that will be

 

 

sounded. This is suitable for creating sounds with a distinctive character.

 

 

If the Filter Type is HPF, raising the cutoff frequency will diminish the lower overtones, emphasiz-

 

 

ing only the bright portion of the sound.

 

 

If the Filter Type is PKG, the cutoff frequency value will change the harmonic content that will be

 

 

boosted.

Cutoff Velo Curve

FIX, 1–7

Curve by which pad playing dynamics will affect the cutoff frequency

(Cutoff Frequency

 

If you select “FIX,” the cutoff frequency will remain fixed regardless of your playing dynamics.

Velocity Curve)

 

 

 

 

1

 

 

2

3

4

5

6

7

 

 

 

Cutoff Velo Sens

-63– +63

Amount by which your pad playing dynamics will affect the cutoff frequency

(Cutoff Frequency

 

Increasing this value will cause a correspondingly greater difference between softly played and

Velocity Sensitivity)

 

strongly played notes. Negative (-) values will invert the change.

Resonance

0–127

Amount by which the sound in the region of the cutoff frequency will be emphasized

 

 

Increasing this value will produce a more strongly distinctive character. Raising this excessively will

 

 

cause oscillation and distortion.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level

LPF

 

 

 

BPF

 

HPF

 

 

PKG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

High

 

 

 

Frequency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

parameter value

Cutoff frequency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reso Velo Sens

-63– +63

Amount by which your pad playing dynamics will affect the resonance

(Resonance Velocity

 

Increasing this value will cause a correspondingly greater difference between softly played and

Sensitivity)

 

strongly played notes. Negative (-) values will invert the change.

Patch/Sample Mode

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Roland MC-909 owner manual Rhythm Edit Filter, Parameter value Cutoff frequency Low