Wersi Abacus, Руководство пользователя

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Selecting Sounds For The Lower Manual And The Pedals
Selecting sounds for these areas is similar to the methods described for the Upper Manual, with the exception that the
Lower Manual has two sound levels, and the pedals has just one sound level.
You will find the Selector Push Buttons in the Lower and Pedal groups in the left control panel. The volumes for the
Lower Manual, and the Pedal are adjusted with the Lower 1 and Lower 2 grey volume drawbars in the Lower Volumes
group and with the Bass Drawbar in the Accompaniment Volumes group.
In theory you may assign any sound to any target. So it is possible to assign a sound from the Pedal group to the
Upper manual, or a trumpet sound to the pedal, although this may not always make sense from a musical viewpoint!
However, you might belong to the group of musicians who like play the ‘Tico Tico’ melody on the pedal (We know of at
least one artist who can do it to perfection!).
5. The Different Sound Generators - An Overview.
Longwave Sounds
Longwave sounds are high quality sample sounds generated by the DSP (SG-12) hardware of your WERSI OAS in -
strument. The Longwave sounds are as their name suggest, a ‘Long Wave’. In older instruments using digital samples,
they would use a sample that was perhaps only 1 second long and then digitally manipulated to make the sound. With
the WERSI OAS Longwaves, the sounds are real recordings in their entirety. For example the Grand Piano samples
last from between 3 seconds to 15 seconds per sample. Choir samples, string samples can last up to 30 seconds for
example. No digital manipulation is required to then synthesise a sound. Longwave sounds are pure samples con -
structed into a usable sound of the highest quality.
You can recognise a Longwave sound by the small Asterisk (*) next to its name. You can assign all Longwave sounds
to any Sound Selector. All Longwave Sounds can also be assigned to any track within any Style or MIDI accompani -
ment.
OX7 Sounds
To generate the famous Tonewheel sounds, your instrument is equipped with a separate
sound generating system based upon the WERSI OX7 Drawbar / Tonewheel system.
The Tonewheel / Zugriegel (German for Drawbars) and Presets push buttons are located
in the ORGAN group to the right of the TFT display screen. Besides other sounds, as
described earlier, you may also assign Tonewheel / Drawbar sounds to any of the avail
-able Selectors of a manual section.
Keep in mind though, that it does not make sense assigning Tonewheel / Drawbar sound
to more than one selector per manual section,as this causes a neutralizing effect which
may sound strange.
If you activate the Tonewheel / Zugriegel button when a selector is active for the Upper
Manual , the Drawbar sound is assigned to the selected sound level. You can vary this
sound with the Black, Brown and White Drawbars in the Tonewheel Upper Manual
group.
Mixing pure Sine Waves of different frequencies, where each of the sine drawbars,
generates the many different Tonewheel / Drawbar sounds.
The 8’ drawbar adjusts the volume of the base tone, and the White 4’, 2’ and 1’ drawbars adjust the volumes of the
Waves that are one, two or three octaves above the base tone.
The Black 2 2/3’ drawbar controls the volume of the fifth above the first octave, and the 1 3/5’ drawbar and the 1 1/3’
drawbars adjust the volumes of the hird or the fifth respectively above the second octave.
The Brown 5 1/3 drawbar controls the volume of the and the 16’ drawbar changes the volume of the octave below the
base note. The colours and placement of the Drawbars correspond with the arrangement that can be found on the
classic Tonewheel organs (Hammond B3 Organs for example).