Yamaha VL-1 Feature Reference - 6: Amplitude
71
Feature Reference
●
Edit Mode
6: Amplitude
•
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Bpag
” and “
Fpag
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● Controller
≤
off, Modulation Wheel … Touch EG (124 settings).
Unlike pressure, the “Amplitude” parameter controls the volume of the sound
without varying timbre. The “
Controller
” parameter specifies the controller to be
used for amplitude control. When set to “
off
” no amplitude control can be applied.
•
Amplitude control via this parameter actually occurs between the modifier
Dynamic Filter and Equalizer stages, the effect of the subsequent impulse
expander and resonator stages is therefore not affected by the amplitude
setting. In contrast, amplitude control applied via MIDI volume control change
number (007) affects the sound level at the instrument’s output, and therefore
the total output from all modifier and effect stages.
•
The Amplitude parameter affects the level of the sound prior to the VL1 effect
stages, so it can be used to vary the amount of overdrive produced by the
distortion effect, for example (
≥
Page 51).
● Depth
≤
-127 … 127.
Sets the amount of variation produced by the controller assigned to amplitude. The
higher the value the greater the variation. Positive values cause an increase in amplitude
in response to higher controller values (e.g. increased breath pressure or higher modula-
tion wheel position), while minus values cause a decrease in amplitude in response to
higher controller values. The “
Depth
” setting is reflected in the graph to the right of the
parameters — the horizontal axis represents the controller value and the vertical axis
represents amplitude.
● Curve
≤
-16 … 16.
Determines the relationship between the controller value and amplitude. When set to
“
0
” the relationship is linear. That is, a change in the controller value produces a corre-
sponding change in amplitude. As the curve value increases the lower end of the control-
ler range has relatively little effect on the sound while higher controller values produce
more dramatic changes. Negative curve values have the opposite effect: the sound
changes dramatically at low controller values while higher values produce relatively little
effect. The “
Curve
” setting is reflected in the graph to the right of the parameters — the
horizontal axis represents the controller value and the vertical axis represents amplitude.
Element Controller