AAS ULTRA ANALOG VA-3, Руководство пользователя

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The Home View 19
3 The Home View
This is the main page for auditioning sounds and playing. The principal elements on this page are
four controls allowing one to easily adjust high-level qualities or characteristics of the sound being
played and modify it. These knobs, labelled
Modulation , Timbre , Envelope , and Effect , control
macro parameters in each layer which are mapped to specific synthesis parameters affecting the
same characteristic of the sound. In other words, these controls add dimension by allowing one
to obtain many different variations of a given sound. Note that the mappings to specific synthesis
parameters are carried out at the layer lever as will be described in Chapter 5 when creating a
sound.
Figure 12: The Home view.
The range of these knobs vary from -1 in their leftmost position to 1 in their rightmost position
with a value of zero in their center position. The value of these parameter represents the amount
of modulation applied to the synthesis parameters mapped to these macro controls. For example if
the
Timbre macro is mapped to the cutoff frequency of some filters, the value of this frequency is
increased when the value of this knob is positive while it is decreased when the value is negative.
When the knob is set to zero, the macro has no effect and the value of the mapped parameters is
kept fixed. In our filter example, its cutoff frequency is not changed and remains the same as the
one in the original sound. Note that the
Modulation
knob only varies between 0 and 1 since it is
assumed that amplitude modulation or vibrato can only be added to a sound.
These four macro parameters can be assigned to external MIDI controllers for increased expres-
sivity and playability. The mapping between the macros and the external controllers is carried out