Noise Engineering Loquelic Iteritas 2018 - Present Silver

This LI is fully functional and in great condition.

Loquelic Iteritas is a digital VCO with interpretations of three classic synthesis algorithms involving dual pitch control. It creates a huge variety of sounds parameterized by four tone and two pitch controls.

• Size: 10HP Eurorack
• Depth: 1.5 Inches
• Power: 2x8 Eurorack
• Draw +12V: 150 / 80
• Draw -12: 5 / 5
• Draw +5v: 0 / 90

Algorithm: VO
The VO algorithm is roughly based off of the VOSIM algorithm which I
discovered while reading Curtis Roads’s epic Microsounds. This algorithm
amplitude modulates a carrier by an exponential to create a more complex
harmonic structure. The simplest carrier is a sinusoid which produces a
spectrum with a Gaussian distribution centered on the carrier. More
complicated waveforms produce Gaussians around each harmonic, producing spectra similar to comb filtered noise.

Algorithm: SS
Algorithm SS is a highly modified version of summation synthesis originally developed by James Moorer. The premise comes from a simple mathematical equality between an infinite harmonic series and a relatively easy to compute expression.

This equation allows a wide variety of musical spectra to be produced by
only two parameters. Loquelic Iteritas generalizes the sinusoidal terms into
multi-waveform oscillators: two of these track the two input pitches while
the third tracks the difference of the two pitches and adds a wave folder for
more harmonics. In the equation oscillator A is the left sinusoidal term in
the numerator. Oscillator B is the sinusoidal term in the denominator.

Algorithm: PM
The PM algorithm is a naive time-domain two-oscillator phase-modulation
implementation that combines both oscillators with amplitude modulation.