noise-engineering/basimilus-iteritas-alter
Basimilus Iteritas Alter
Parameterized digital drum synthesizer with roots in the analog world, featuring six oscillators in additive/FM configurations, a noise oscillator, and a wavefolder. Capable of kicks, snares, hats, and more, with an envelope output for modulating other modules.865
Capabilities 4
- Drum Synthesizerdrum-synthesizer
- Six-oscillator additive/FM voice with three synthesis modes (Skin, Liquid, Metal) and a noise oscillator, designed for percussion and other sounds.865
- Envelope Generatorenvelope-generator
- Provides an envelope output (0-5V) tracking the internal envelope shape, usable for external modulation.865
- Wavefolderwavefolder
- An 'infinifold' wavefolder that dynamically adds fold stages and can mix in a pulse train at maximum settings.865
- Waveshaper / Wavefolderwaveshaper
- 865
Jacks 10 (8 in / 2 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (8) | |||
| Attack CV | cv | 0V to 5V | 865 |
| Decay CV | cv | 0V to 5V | 865 |
| Fold CV | cv | 0V to 5V | 865 |
| Harmonic CV | cv | 0V to 5V | 865 |
| Morph CV | cv | 0V to 5V | 865 |
| Pitch CV | cv | 0V to 8V | 1V/octave pitch CV input, calibrated for 1V/octave tracking. On the Alter, range is 0V to 8V.865 |
| Spread CV | cv | 0V to 5V | 865 |
| Trig | gate | ≥1.8V | Gate or trigger input that fires the internal envelope. Works with any gate or trigger signal, and can be driven at audio rates.865 |
| Outputs (2) | |||
| Env Out | cv | 0V to 5V | Envelope output tracking the shape of BIA's internal envelope, usable for modulating other modules.865 |
| Out | audio | ≤14V | Low-impedance audio output whose level varies based on module parameterization; loudness compensation is applied internally.865 |
Parameters 10
| Name | Type | Range | Behavior |
|---|---|---|---|
| Attack | knob | — | Controls attack for all oscillators. Left of center adds noise; dead center produces an analog-style pop; right of center slows the attack. Knob offsets the CV input.865 |
| Bass/Alto/Treble | switch | — | Three-position switch that offsets the overall pitch of the voice by two octaves per position.865 |
| Decay | knob | — | Adjusts the decay time for all oscillators; the knob offsets the CV input.865 |
| Fold | knob | — | Controls the wavefolder threshold for the first three-quarters of its range, dynamically adding fold stages. In the top quarter of its range, a pulse train is mixed in for additional harmonic content.865 |
| Harmonic | knob | — | Controls harmonic decay and amplitude of the oscillators. Fully left produces a single oscillator tone; increasing the parameter blends in additional harmonics that last longer.865 |
| Hit | button | — | Manual button that activates the internal envelope without a patch cable.865 |
| Morph | knob | — | Sweeps the waveform of all oscillators continuously through sine, triangle, saw, and square. The knob offsets the CV input.865 |
| Pitch | knob | — | Encoder for adjusting pitch; press and turn for coarse semitone adjustments, turn alone for fine tuning. The Pitch CV input tracks 1V/octave.865 |
| Skin/Liquid/Metal | switch | — | Three-position switch that selects the synthesis algorithm: Skin (additive), Liquid (additive with pitch envelope), or Metal (phase-modulated FM).865 |
| Spread | knob | — | Controls the frequency spacing between oscillators, sweeping the overtone series from purely harmonic to inharmonic. The knob offsets the CV input.865 |
Firmware history 0 versions
No firmware history recorded.
References 2
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Noise Engineering Basimilus Iteritas Alter product pageproduct_page● verified 2026-05-24