Basimilus Iteritas
$35.00
Noise Engineering Basimilus Iteritas
analog inspired parametrized digital drum synthesizer
Basimiuls Iteritas is a parameterized digital drum synthesizer with its roots in the analog world. At its heart it is a simple six oscillator additive synthesizer with adjustable waveform, harmonic spread and decay. Adjustable attack including a noise oscillator is also included. These are summed and fed into an infinifolder for crunch and variety.
Interface
Pitch
The pitch knob and CV input adjusts the pitch of the fundamental oscillator. This is a 1v/8va standard input. The knob sums with the CV input.
Decay
The decay knob and CV input adjust the decay for all oscillators. The knob scales the CV input.
Attack
The attack knob and CV input adjust the attack for all oscillators. When left of center noise is added. When dead center a classic analog style pop is produced. When right of center the knob slows the attack. The knob scales the CV input.
Morph
The morph knob and CV control the waveform of all oscillators. This blends through: sin, triangle, saw, and square continuously. The knob scales the CV input.
Fold
The fold knob and CV control the infinifold section. For the first 3/4 of the range this sets the threshold of the folder. This folder will dynamically add multiple fold stages to maximize the amount of folding based on the fold threshold and signal amplitude. When the control is in the top quarter of its range a pulse train based on the signal is mixed in to give even more harmonic content. The knob scales the CV input.
Harmonic
The harmonic knob and CV control the harmonic decay of the oscillators. When full left only one oscillator is audible. This simulates many simple analog bass drums. As the parameter is increased more harmonics blend in lasting longer periods of time. The knob scales the CV input.
Fully CCW the tone produced is a single harmonic tone. From there to the first quarter a second tone fades in. The remaining turning extends first the decays then the amplitudes of the other four harmonics.
Spread
The spread knob and CV control the frequency spacing of the oscillators. This allows the overtone series to vary from a purely harmonic to very in-harmonic.
Skin/Metal
The Skin/Metal switch changes the algorithm from six oscillator additive (skin) to a six oscillator FM (metal). The metal setting is designed to produce metallic sound such as cymbals and high hats where the skin setting is for more tonal percussion such as bass drums.
Bass/Treble
The Bass/Treble switch offsets the fundamental pitches to move the BI into a range suitable for generating cymbal and high hat sounds.
Trigger
The trigger input triggers the start of a drum sound. It is a rising edge trigger which has a threshold of around 3 V.
Hit
The Hit switch allows one to manually trigger Basimilus Iteritas.
Out
The output is a low impedance audio source of about +- 9v. The output varies significantly based on the parameterization as compensation for loudness occurs.
Noise Engineering System In Depth from Muff Wiggler on Vimeo.
**The Purple Faceplate/Silver Knob kit is only the faceplate and knobs to replace the silver plate/black knobs that come standard on the module. The kit is not a DIY complete module kit.
Manufacturer
Format
eurorack
Functions
LFSR, VCO, drum synthesizer
Bus Board Cable Type
2x8 Eurorack
Width
12HP
Power Supply
+-12v
Depth
38mm
Max Current
150mA
CV IO
N/A
