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[PWM]: This input allows you to modulate the pulse width of the square signal. This input
is only active when the square waveform is selected. It allows you to modify the
waveform cycle with for example an envelope or LFO. The pulse width modulation creates
spectrum modifications comparable to a chorus effect if you use an LFO.
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The Amount knob allows you to set the depth of the selected modulation.
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The Bipolar or Unipolar selector allows you to set the polarity of the selected modulation.
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[Audio]: This is the audio output of the oscillator. You can for example connect this
output to a mixer module to mix the oscillator signal with other audio modules.
Alternatively you can connect it directly to a filter or VCA module.
9.1.1.1.4 Jupiter-8 oscillator
This oscillator is an emulation of the oscillators used in Roland's Jupiter-8 synthesizer. With 8 notes
polyphony and an extensive array of features, the Jupiter-8 was capable of generating a wide
variety of sounds. To this day, it is still heard on numerous records thanks to its warm analog sound.
Famous players include: Howard Jones, Tears for Fears, Ultravox, Michael Jackson (used on his
"Thriller" album), Moby, David Bowie and Alicia Keys.
The Jupiter-8 oscillator has one of the most "surgical" sound from all the VCO's (for Voltage
Controlled Oscillator). All the waveforms are very close to the mathematical waveforms we can
have in laboratory oscillators. Its tune is also very stable contrary to most of other analog VCOs
modules.
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The pitch is defined by the oscillator frequency. You can set the frequency with 3 controllers:
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The [Range] selector determines the fundamental frequency expressed in feet. 32' brings
the lowest audible frequencies; 2' brings the highest audible frequencies. The "LO"
setting lets you use the oscillator as a low frequency oscillator (LFO) to modulate other
parameters.
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The [Fine tune] knob allows you to tune the oscillator more precisely. This can be used to
create detuning effects.
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The [Coarse tune] knob adjusts the frequency of the oscillator in semi-tones. This knob
ranges from minus 2, to 2 octaves above the fundamental frequency.
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The waveforms define the sonic characteristic of the oscillators sound.
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The [Sawtooth] presents the richest audio signal of the waveforms. It contains all of the
harmonics at decreasing volume levels in high frequencies. Its sound is ideal for brass
sounds, bass sounds or rich lead and pads.
ARTURIA – ORIGIN – USER'S MANUAL
The Output connections:
The Jupiter-8 oscillator
The Pitch:
The waveforms:
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