Roland XV-88 Electronic Keyboard User Manual


 
102
Chapter 6. Creating Rhythm Sets
Cutoff (Cutoff Frequency)
Selects the frequency at which the filter begins to have an
effect on the waveforms frequency components.
With LPF/LPF2/LPF3 selected for the Type parameter,
lower cutoff frequency settings reduce a Tones upper
harmonics for a more rounded, warmer sound. Higher
settings make it sound brighter.
When the Type parameter is BPF, the cutoff frequency
setting determines the range of frequencies within the Tone
that will be heard. This can be useful when creating
distinctive sounds.
When the Type parameter is HPF, higher settings of the
cutoff frequency decrease the level of the Tones low
frequencies, preserving its brighter qualities.
With PKG selected, the harmonics to be emphasized will
vary depending on Cutoff Frequency setting.
Resonance
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.
fig.05-67.e
TVF VELOCITY
fig.06-22
V-Cutoff (Cutoff Frequency Velocity Sensitivity)
Use this parameter when changing the cutoff frequency to be
applied as a result of changes in playing velocity. If you want
strongly played notes to raise the cutoff frequency, set this
parameter to positive (+) settings. If you want strongly
played notes to lower the cutoff frequency, use negative (-)
settings.
V-Curve (Cutoff Frequency Velocity Curve)
Selects one of the following seven curves that determine how
keyboard playing dynamics (velocity) influence the cutoff
frequency. Set this to FIXED when the Cutoff frequency is
not to be changed according to the force with which the keys
are pressed.
fig.05-70
V-Resonance (Resonance Velocity Sensitivity)
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. If you want strongly played notes to have less
Resonance, use negative (-) settings.
TVF ENVELOPE
fig.06-23
fig.06-24
fig.06-25
This is used for setting TVF envelope (how cutoff frequency
changes over time).
Depth (TVF Envelope Depth)
Specifies the depth of the TVF envelope. Higher settings will
cause the TVF envelope to produce greater change. Negative
(-) settings will invert the shape of the envelope.
V-Sens (TVF Envelope Velocity Sensitivity)
Specifies how keyboard playing dynamics will affect the
depth of the TVF envelope. Positive (+) settings will cause
the TVF envelope to have a greater effect for strongly played
notes, and negative (-) settings will cause the effect to be less.
V-Curve (TVF Envelope Velocity Curve)
Selects one of the following 7 curves that will determine how
keyboard playing dynamics will affect the TVF envelope. Set
this to FIXED when the amount of TVF Envelope applied is
not to be changed according to the force with which the keys
are pressed.
fig.05-70
LPF BPF HPF PKG
parameter value
Level
Cutoff frequency
Frequency
High
Low
1234567
1234567