This filter has some specific features :
•
No distortion of the signal at low Q, allowing a clear pass-through.
•
4 frequency responses are available : the classic Low Pass 24dB/Octave is the
default configuration, but there is also a Low Pass 12dB/Octave, a Band Pass
12dB/Octave, or a High Pass 12dB/Octave.
2 LFOs with variable waveform
These two LFOs offer a unique feature : you can adjust the shape of the CV using
potentiometers instead of switches. This allows to continuously change from a rising saw, to
a triangle and then to a slope down. Or stop halfway between sinus and square.
The waveform (WF) potentiometer controls the shape of the transition. It changes from a
straight ramp (like in triangle or saw), to a sudden change of value (like in a square), passing
through a sinusoid shape.
The other potentiometer (SYM) adjusts the symmetry of the output, i.e the ratio between
rise/fall times. It passes from a rising saw to a triangle and then a falling saw.
Frequency range of these LFOs is huge : the period can go from 45 seconds to 1/40 second.
When this LFO is synchronized with a GATE signal (from keyboard, or midi), the LFO phase
is reset at the beginning of every note.
LFO3 : VCLFO with selectable waveform
The 3rd LFO is completely different as it is wired to the gate and can trigger notes.
In addition to classic waveforms (sinus, triangle, square, pulse), it provides waveforms
dedicated for simple rhythmic generation : [1 0], [1 0 0 0], [1 1 0 0], [1 1 1 0], [1 1 0 1 0], [1 1
1 1 0], [1 1 0], [1 1 0 0 1 0 0 0].
It also provides a random generator, because… well, it’s nice.
LFO 3 frequency range is the same than LFO 1 and 2, BUT it’s a VCLFO : LFO3 frequency
can be controlled by another CV.
You can also add groove to your rhythm!
This is LFO3 waveform :
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