Roland XV-5080. 用户手册

cutoff frequency by raising their level. You can use this to 
create wah-wah effects by employing an LFO to change the 
cutoff frequency cyclically.

 Low Pass Filter 2. This reduces the volume of all 

frequencies above the cutoff frequency. This differs from LPF 
in that you can control the amount of the reduction using the 
TVF ENVELOPE settings while still maintaining a fixed 
cutoff frequency.

This can be very effective with acoustic-instrument-based 
Tones, since nothing is done to weaken the power and 
energy of the sound.

This disables the Resonance setting.

 Low Pass Filter 3. This reduces the volume of all 

frequencies above the cutoff frequency. While similar to 
LPF2, it filter reduces the frequencies more gently than LPF2.

This can be very effective with acoustic-instrument-based 
Tones, since nothing is done to weaken the power and 
energy of the sound.

This disables the Resonance setting.

 0–127

Specifies the frequency (cutoff frequency) at which the filter 
will begin to affect the frequency characteristics of the 
waveform.

With LPF/LPF2/LPF3 selected for the Filter Type parameter, 
lower cutoff frequency settings reduce a Tone’s upper 
harmonics for a more rounded, warmer sound. Higher 
settings make it sound brighter.

When Filter Type is BPF, the cutoff frequency setting 
determines the range of frequencies within the Tone that will 
be heard. It is useful for making distinctive sounds.

When Filter Type is HPF, higher settings of the cutoff 
frequency decrease the level of the Tone’s low frequencies, 
preserving its brighter qualities.

When Filter Type is PKG, the cutoff frequency setting 
determines the range of frequencies to be emphasized.

 0–127

Increases the level of the cutoff frequency, adding character 
to the sound. Excessively high settings can produce 
oscillation, causing the sound to distort.

fig.06-015.e

 -63– 63

Use this parameter when you want velocity to affect the 
amount of Resonance. For higher settings, there will be a 
greater difference between softly and strongly played notes. 
Negative (-) values invert the change.

 FIXED/1–7

Selects one of seven curves that determine how keyboard 
playing dynamics (velocity) influence the Tone’s cutoff 
frequency. The selected curve is displayed graphically to the 
right of its value.

When V-Curve is set to “FIXED,” the cutoff frequency 
remains unchanged regardless of how hard or soft the keys 
are played.

 -63– +63

Sets the amount of change produced when the keyboard 
touch is used to change the cutoff frequency. For higher 
settings, there will be a greater difference between softly and 
strongly played notes. Negative (-) values invert the change.