QUADRANTID SWARM
Paraphonic synthesiser
We designed the QS for immediate use without having to worry about complex patching. Pre-patching is
therefore used to make connections in logical places. Some of these are highlighted using arrows,
particularly the modulation sources and connections, the audio routing hasn't been highlighted to keep the
design clean but as expected runs from mixer, to filter, to reverb then to VCA. Some pre-patched points can
be interrupted by inserting a cable, allowing you free reign over patching on the QS.
The VCO section is Digital, while the filters, the VCA and the spring reverb are analog.
VCO
The QS offers 8 different VCO models and an additional percussive sound
The VCO has 3 parameters - Freq, Spread Character.
The Percussive sound has one parameter - perc, which determines the length of the percussion decay
Freq : controls the base pitch of the VCOs. It can be modulated by the CV in input associated to it's
attenuator : freq mod.
Spread : this function only works in monophonic mode. It controls the frequency ratio between the 8 VCOs.
Depending on the model this ratio can be harmonic (organ and string) or inharmonic (the others).
Character : this parameter has different functions depending on the VCO model Organ, String, Drone,
Reed : it determines the amount of signal passing through a wavefolder. The more character you add the
more distorted you sound will be.
Metal : adjusts the amount of modulation the modulating oscillator has on the 8 main VCOs
Chiptune : adjusts the amount of modulation the LFO has on the pulse width of the 8 main VCOs
Grains, Noise : adjusts the amount of short delay
To switch between models, press shift and the dedicated touch key.
Organ : 8 sine VCOs
Strings : 8 saw VCOs
Drone : 8 triangle VCOs
Reed : 8x2 VCOs the second VCO is slightly detuned
Metal : 8 sine VCOs with an additional 9
th
that modulates the frequency of the other VCOs
Chiptune : 8 square VCOs with pulse width modulation
Grain : 8 grain generators based on sine wavelets
Noise : digital pitched noise
FILTER
The signal coming from the VCO's is feed into a 3 input mixer. You can mix the main VCO, the percussion
VCO and an external signal. By default input 3 i connected to the output of the reverberation (useful for
feedback). The 2 x 12dB filters are connected in serial. Filter 1 can be switched between Low pass and Hi
pass. Filter 2 is Low pass only. You can control the frequency and amount of resonance for each filter,
separately. An extra Modulation input associated with associated attenuator can modulate the Filter's
frequency. By default Filter 1 modulation is pre-patched to the envelope, and filter 2 modulation to the LFO.
VCA
The VCA has an audio input, a control and an audio output. By default the envelope is pre-patched to the
VCA control. If you want to generate drones, you should connect a constant positive voltage 0-10V to the
VCA input.You can also use very long attack and release times with a slow sequence.
SPRING REVERB
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