AAS ULTRA ANALOG VA-3, Руководство пользователя

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6.1 Settings 69
C of the keyboard in the case of A440. A tuning fork or electronic tuner is typically used to give
a reference note. A temperament is a tuning system, or a set of rules, which establishes how the
octave is subdivided and allows one to calculate the frequency of all the other notes in a scale.
By default, Ultra Analog VA-3 is tuned using equal temperament and a frequency of 440 Hz
for the A4 note (MIDI note 69). These values are displayed under
Reference Note
and
Frequency
in the Master Tuning section. One can transpose, or in other words raise or lower the frequency
of all the notes on the keyboard, by changing the frequency (in Hertz) of the reference note with
the
Frequency parameter. Any note can be chosen as a reference by clicking on the Reference Note
drop-down menu. When choosing a new note, the value of the Frequency parameter is updated to
the current frequency of this new note in A440 and equal temperament.
The A440 button to the right of the Reference Note control is used to revert to A440 when both
the reference note and its frequency were changed. The Reset button next to the Frequency control
brings back the frequency of the reference note to its original value.
Note that the tuning parameters in the Settings window are used to fix the general tuning of
the synthesizer. The tuning of each layer, with respect to this reference tuning, can be adjusted
independently using the
Tune controls in the layer mixer as will be discussed below.
6.1.3 Microtonal Tuning
An interesting feature of
Ultra Analog VA-3
is that it can be tuned according to different temper-
aments using Scala micro-tuning files. Temperament files are loaded by clicking on the Tuning
drop-down menu which shows a list of available temperament. By default, the only temperament
available is the equal temperament. Other temperaments can be added by clicking on the
Show
Tuning Files button just below the Tuning parameter and copying Scala files in this folder.
Selecting a new Scala file with the Tuning automatically triggers the loading of the correspond-
ing temperament. The reference note used as the base note for the scale described in the Scala file
as well as its frequency are set using the
Reference Note
and
Frequency
parameters of the
Master
tuning section as explained above.
6.1.4 Macros
The Macros settings is used to assign an external MIDI continuous controller to the four Macros
modules used in each layer. One can select a specific controler from the list of controller numbers
appearing when clicking on the drop-down menus of this section for each of the
Macros
module.
The Learn command can also be used to assign a controller. When one of the Learn buttons
is switched on , the corresponding modulator will be assigned to the first continuous controller
from which a message is received. Note that when the None option is chosen, the corresponding
Modulator will not respond to any controller.
For more information on the Macros modules, please refer to section 5.2.5.