Roland juno-stage ユーザーガイド
128
Chapter 9. Detailed Settings for a Rhythm Set
A filter cuts or boosts a specific frequency region to change a sound’s brightness, thickness, or other qualities.
TVF PARAMETER
Parameters indicated by (
Modifying the Brightness of a Sound with a Filter (TVF/TVF Envelope)
Parameter
Value
Explanation
Filter Type
Filter Type
OFF, LPF, BPF,
HPF, PKG, LPF2,
LPF3
HPF, PKG, LPF2,
LPF3
Type of filter
OFF:
No filter is used.
LPF:
Low Pass Filter. This reduces the volume of all frequencies above the cutoff frequency in
order to round off, or un-brighten the sound.
BPF:
Band Pass Filter. This leaves only the frequencies in the region of the cutoff frequency, and
cuts the rest. This can be useful when creating distinctive sounds.
HPF:
High Pass Filter. This cuts the frequencies in the region below the cutoff frequency. This is
suitable for creating percussive sounds emphasizing their higher tones.
PKG:
Peaking Filter. This emphasizes the frequencies in the region of the cutoff frequency. You
can use this to create wah-wah effects by employing an LFO to change the cutoff frequency
cyclically.
cyclically.
LPF2:
Low Pass Filter 2. Although frequency components above the cutoff frequency are cut, the
sensitivity of this filter is half that of the LPF. This filter is good for use with simulated instrument
sounds such as the acoustic piano.
sounds such as the acoustic piano.
LPF3:
Low Pass Filter 3. Although frequency components above the cutoff frequency are cut, the
sensitivity of this filter changes according to the cutoff frequency. While this filter is also good
for use with simulated acoustic instrument sounds, the nuance it exhibits differs from that of the
LPF2, even with the same TVF Envelope settings.
for use with simulated acoustic instrument sounds, the nuance it exhibits differs from that of the
LPF2, even with the same TVF Envelope settings.
* If you set “LPF2” or “LPF3,” the setting for the Resonance parameter will be ignored.
Cutoff Frequency
Cutoff
0–127
Frequency at which the filter begins to have an effect on the waveform’s frequency components
Resonance
Resonance
0–127
Emphasizes the portion of the sound in the region of the cutoff frequency, adding character to the sound.
* Excessively high settings can produce oscillation, causing the sound to distort.
Parameter
Value
Explanation
Cutoff V-Curve
FIX, 1–7
Curve that determines how keyboard playing dynamics (velocity) will affect the cutoff frequency
Set this to “FIX” if you don’t want the cutoff frequency to be affected by the keyboard velocity.
Cutoff V-Sens
-63–+63
Use this parameter when changing the cutoff frequency to be applied as a result of changes in
playing velocity.
playing velocity.
If you want strongly played notes to raise the cutoff frequency, set this parameter to positive (+) settings.
Resonance V-Sens
-63–+63
This allows keyboard velocity to modify the amount of Resonance.
If you want strongly played notes to have a greater Resonance effect, set this parameter to
positive (+) settings.
positive (+) settings.
ZOOM
ZOOM
ZOOM
ZOOM
LPF
BPF
Resonance
HPF
PKG
Parameter Value
Level
Cutoff frequency
Frequency
High
Low
1
2
3
4
5
6
7
JUNO-STAGE_e.book 128 ページ ２００８年１０月１７日 金曜日 午後１２時２７分