Roland V-Bass VB-99 - Manual (Page 102)

102
Chapter 8 Parameters Guide COSM BASS
WAVE SYNTH OSC SYNTH
Parameter/
Range
Explanation
MASTER LEVEL
0–100 Sets the volume.
WAVE SHAPE
Selects the wave type on which the synth sound is based.
SAW Creates a synth sound with a sawtooth waveform.
SQUARE Creates a synth sound with a square waveform.
WAVE SENS (Wave Sensitivity)
0–100 This adjusts the input sensitivity to be used
for detecting when a string has been played.
Adjusting this parameter allows you to sup-
press erroneous processing of volume and
tone changes after a string is played.
WAVE ATTACK
0–100 Adjusts the time it takes for the synth sound to
rise after a string is plucked. When it is set to a
lower value, the sound will rise quickly. When
it is set higher, the sound will rise slowly.
WAVE DECAY
0–100 Adjusts the time it takes for the synth sound to
decay. The synth sound decays more quickly
when this parameter is set to a lower value. Set-
ting a higher value increases the decay time.
CUTOFF
0–100 Adjusts the cutoff frequency at which the fil-
ter cuts off the sound’s harmonic compo-
nents.
This parameter determines the sound that
will result after the filter has stopped vary-
ing due to FILTER DEPTH.
RESO (Resonance)
0–100 Adjusts the resonance (distinctiveness of the
sound). As the value is increased, sounds in
the frequency range near the cutoff frequen-
cy are boosted, making the sound more dis-
tinctive and unique.
FILTER TYPE
-12 dB, -24 dB Selects the curve of attenuation in the filter.
The -24 dB setting has very steep filtering
characteristics.
FILTER ATTACK
0–100 Sets the filter attack time.
FILTER DECAY
0–100 Sets the filter decay time.
FILTER DEPTH
-50–+50 Adjusts the depth of the filter’s change.
When set to a positive value, the VCF cutoff
frequency shifts from a high value to a low
value. When set to a negative value, the VCF
cutoff frequency shifts from a low value to a
high value.
Parameter/
Range
Explanation
MASTER LEVEL
0–100 Sets the volume.
OSC SHAPE
SQ=0, SW=100–
SQ=100, SW=0 Specifies the waveform by adjusting the bal-
ance of SQ (square wave) and SW (sawtooth
wave).
SENS (Sensitivity)
0–100 Adjusts the input sensitivity
PWM WIDTH
0–100 Adjusts the width of the positive phase and
negative phase of the SQUARE wave.
PWM RATE
0–100 Adjusts the frequency at which the pulse
width of the SQUARE wave will be modu-
lated.
PWM DEPTH
0–100 Adjusts the depth to which the pulse width
of the SQUARE wave will be modulated.
* PWM WIDTH, RATE, and DEPTH will have
no effect if OSC SHAPE is SW=100 and
SQ=0.
ENV FOLLOW (Envelope Follow)
OFF, ON When set to “ON,” the sound is generated
according to the amplitude of the strings.
When set to “OFF,” the sound is generated
at a fixed level.
HOLD
OFF, ON This function sustains the output of the
synth sound. If you turn Hold “ON” while
the synth sound is being output, the output
of the synth sound will be held until you turn
it “OFF.” It would be useful when you assign
it to the CTL pedal, and use it while you per-
form. Normally, you should set this “OFF.”
CUTOFF (Cutoff Frequency)
0–100 Adjusts the brightness (hardness) of the
sound. Increasing this value will brighten
the sound.
RESO (Resonance)
0–100 Adjusts the amount of resonance (tonal
character) for the synthesizer sound. In-
creasing this value will produce a more
strongly distinctive tone.
FILTER TYPE
-12 dB, -24 dB Specifies the depth of the effect produced by
the filter.
FILTER ATTACK
0–100 Specifies the attack time of the filter.
FILTER DECAY
0–100 Adjusts the time over which the filter will
come to rest.
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