Plankton Electronics ANTS!, Руководство пользователя

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Notice that XTOSC·Y is normalled to the VCF IN1 so you do not need to
patch it. If you have done it properly, you should be listening a fat bass
sound.
You may have noticed that going too up on the MIDI keyboard the oscillators go
out of tune between them. This is normal with these kind of oscillators. You can
play them on tune over 2 (maybe 3) octaves, but when played all together the
difference is more noticeable. Try to play over a short range and tune them close
to this range. Best results are obtained playing the keyboard close to the MIDI
note 36. At high pitches the tuning will be worst, if you want to play the synth
with a MIDI keyboard do it on the bass range.
WAVES
The 4 oscillators have different waves at the output. These are sine wave,
triangle wave, pulse (and square), and saw tooth.
Sine waves have no harmonics. They only have the main frequency.
They are best used to generate drums or mixed with other waves to create
complex tones. They are also very useful to be modulated by other waves.
Triangle waves are very close to the sine waves but they have some
overtones. They are made up of odd number harmonics that decrease
exponentially. They are useful for drone sounds and complex auto
generative patches.
Square waves are very rich in harmonics and have a “hollow” sound.
Like the triangle they are made up of an odd number of harmonics but they
decrease steadily. They are very good to filter with the VCF .
You can obtain 2 square waves from the XTOSC·X and XTOSC·Y . XTOSC·X serves
it directly when nothing is plugged in the PWM IN. On XTOSC·Y you can get it
when the PWM pot is at its centre position.
Pulse waves are depend on the Pulse Width (PW). The PW is the
period when the wave is “up” and it is expressed in %. In a square wave the
pulse width is 50%. A Pulse Wave of 10% sounds the same than a 90% (they
are the same wave, but inverted). As the Pulse Width deviates from 50%, it
sounds increasingly brighter and richer; but as the Pulse Width becomes
very narrow, it becomes more thin and nasal. They are made up of all
harmonics, but they amplitude depends on the pulse width percentage.
You can determine the pulse width of XTOSC·Y by turning the “PWM” (Pulse
Width Modulation) pot. Fully CCW it will have a very narrow “up” state and
thin sound. Fully CW it will go far to its limits and will only output a 4V DC