14: Absorption - Yamaha VL-1 Feature Reference

Feature Reference

14: Absorption

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Controller
The absorption parameter simulates the effect of high-frequency loss at the end of
the air column or string. The "Controller" parameter specifies the controller to be
used for absorption control. When set to "off" no absorption variation can be applied
via a controller.
• Please note that accurate keyboard pitch is produced only at when absorption
is maximum.
Depth
Sets the amount of variation produced by the controller assigned to absorption. The
higher the value the greater the variation. Positive values cause a decrease in absorption
in response to higher controller values (e.g. increased breath pressure or higher modula-
tion wheel position), while minus values cause an increase in absorption 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 absorption.
Curve
Determines the relationship between the controller value and absorption. When set
to "0" the relationship is linear. That is, a change in the controller value produces a
corresponding change in absorption. As the curve value increases the lower end of the
controller 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 rela-
tively 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 absorption.
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