9c
OSCILLATORS
!
O
scillations Courages
Oscillators are the biogenesis of Analog synthesis. An oscillator
produces periodic or regularly repeating waveforms, e.g., pitched
sounds. The Oscillator’s tuning controls alter the frequency or
pitch of the oscillators, whereas its wave shape selectors
determine the harmonic spectrum of the signal, its basic timbre,
or tone coloration. We here at SE think Voltage Controlled OSCs
still sound best.
Waveform Characteristics
Triangle:
Fluty, with odd harmonics like the Square wave, but
its amplitude is quite weak in comparison to its fundamental. The
Triangle possesses more brilliance than the similarly shaped sine.
Sharktooth:
A lovely hybrid of the Triangle & Sawtooth waves
for
OSC1
and
OSC2
. It contains a bit more harmonic energy than
the Triangle wave, because it includes some even-numbered
harmonics—the
16’
secret weapon in many R&B baseline classics.
Sawtooth:
Bright, buzzy, brassy—the richest harmonically—
containing both even and odd harmonics of the fundamental
frequency. A very smooth tone is yours with a low-pass
fi
lter on
tap. Oscillator 3 o
ff
ers a reversed version of the wave in place of
the sneaky Sharktooth from
OSC1
&
OSC2
.
Square:
In its even state, it is a full bouncy sound—a bass beast
for many. Near the edges of its duty cycle, or width, the beloved
becomes a “clavi,” reedy, nasal a
ff
air, with odd harmonics only.
The (wide rectangle) introduces even numbered harmonics
changing the overall harmonic mix. The (narrow rectangle)
hypes lower numbered harmonics—both odd and even.
RANGE (x3)
Sets the speed; selects the octave.
LO
: mainly clicks ’n' ticks below the audible range for humans,
32’
,
16’
,
8’
,
4’
,
2’
. The
LO
setting of
OSC2
can be employed as a very
fl
exible modulator. FYI: These foot/pitch numbers come from the lengths of organ
pipes in the great cathedrals/power stations (forgotten tech) of old—1/2 the length equals double the pitch.
MASTER TUNE
Adjusts the overall tuning for the unit: r and - 7 semitones.
WAVEFORM (x3)
Five position switch selects the
WAVEFORM
to be outputted—all waves are always active.
Midimini V30 User Manual
Rev. 1.29.20
17
© Analogia Inc. 2020
💡
Said clicks ’n' ticks can generate clever rhythmic pulses.
