Noise Engineering Cursus Iteritas Magnus
Orthogonal function wavetable oscillator with spectral harmonic shaping
10 HP Eurorack module
Cursus Iteritas Magnus is a dynamically generated wavetable oscillator that uses orthogonal function sets (Fourier, Daubechies wavelets, and Walsh functions) to give spectral-like control over harmonic content. It offers bandpass-filter-style controls over timbre — Center, Width, and Tilt — allowing asymmetric spectral shaping with a strongly musical, harmonic tone structure. It is the 5U large-format version of Cursus Iteritas and excels as a lead, bass, or textural oscillator.
Features
- Three orthogonal function modes: Fourier (sine), Daubechies (wavelet), Walsh (sequency)
- Dynamically generated wavetable rebuilt in real time from spectral description
- Bandpass-filter-style spectral controls: Center, Width, Tilt, Structure
- Variable sample rate locked to a multiple of the fundamental frequency to align aliasing with harmonics
- Edge control interpolates oversampling from point sampling to cubic-spline (NURBS) interpolation
- Fold wavefolder for additional harmonic complexity
- Analog-style soft clipping stages throughout signal path for warmth
- Wavetable normalization reduces amplitude variation across spectral changes
- 1V/oct pitch tracking with encoder for fine and coarse tuning
- Two-octave Range offset switch
- Edge-based oscillator hard sync input
- CV inputs for all major parameters: Pitch, Center, Structure, Edge, Fold, Width, Tilt
Controls & Jacks (22)
- Pitch — Controls the base pitch of the oscillator.
- PITCH — 1V per octave pitch control. Turn encoder for fine tuning, press and turn for coarse tuning.
- EDGE — Controls the oversampling filter of the wavetable. Turning right adds musical overtones. Functions as offset for Edge CV input.
- TILT — Weights the spread of harmonics. Middle is symmetric; left emphasizes lower harmonics; right emphasizes higher harmonics. Functions as offse
- TILT — Weights the spread of harmonics. Middle is symmetric; left emphasizes lower harmonics; right emphasizes higher harmonics. Functions as offse
- PARITY — Controls the harmonic parity/distribution of the oscillator.
- OUTPUT — Main audio output.
- CENTER — Selects the center harmonic used to build the wavetable. Functions as offset for Center CV input.
- WIDTH — Controls how many different harmonics are used to create the wavetable. Functions as offset for Width CV input.
- B/A/T — CV input for the Bend/Add/Tilt parameter.
- CENTER — Selects the center harmonic used to build the wavetable. Functions as offset for Center CV input.
- PARITY — CV input for the Parity parameter.
- SYNC — Triggers edge-based oscillator reset
- D/F/W — CV input for the Depth/Freq/Warp parameter.
- FOLD — Wavefolder control. Functions as offset for Fold CV input.
- WIDTH — Controls how many different harmonics are used to create the wavetable. Functions as offset for Width CV input.
- EDGE — Controls the oversampling filter of the wavetable. Turning right adds musical overtones. Functions as offset for Edge CV input.
- FOLD — Wavefolder control. Functions as offset for Fold CV input.
- B/A/T — Switch selecting between Bend, Add, and Tilt waveshaping modes.
- D/F/W — Switch selecting between Depth, Freq, and Warp modulation modes.
- Mode — Selects which orthogonal function set is used to produce the wavetable: Fourier (sine waves), Daubechies (wavelets), or Walsh (Walsh transfo
- Range — Two octave offset pitch ranges for extended tonal control
How-To Guides
- Harmonic Drone Pad
- Rhythmic Timbral Sequencing
- Daubechies Bass Line
- Walsh Function Lead
- Spectral Morphing with Cycling Envelopes
- Hard Sync Timbral Texture
- Walsh Percussive Tones
- CV Sequence Timbral Variation
- Harmonic Aliasing Texture
Explore the interactive Cursus Iteritas Magnus panel on BleepDex — tap any control to learn what it does.
