Variable Spectrum Harmonic Cluster Oscillator
Model of 1975

  • Odessa
  • Odessa
  • Odessa
  • Odessa
  • Odessa


Odessa is an additive oscillator, which means the output signal is synthesized by adding a multitude of sinusoidal components (up to 2560 harmonic partials). By manipulating their parameters it is possible to obtain a broad range of unearthly sounds as well as classic saw, square, and pure sine. Odessa offers a set of controls for shaping harmonic spectra based on number of partials and their distribution in frequency and amplitude; all of which is illustrated by a spectrum analyzer comprising 12 multicolor LEDs. The series of harmonics can be squeezed or spread apart, tilted, or pruned by a comb-like frequency response, resulting in a huge variety of spectra. Animating the comb response yields radical effects similar to flanging and phasing. All partials are frequency-related to a common fundamental and controlled by a single volt/octave input. Additionally, the signal can be frequency modulated by exponential and linear (through-zero) means. Also, up to five detuned voices can be spread apart for a fat and dense cluster, or a powerful chord. For detailed description, please refer to the manual.

  • Powerful additive synthesis engine with up to 2560 sinusoidal partials
  • 0.5Hz to 21kHz frequency range with resolution of 0.006Hz
  • Harmonic or inharmonic spectra shaped by tilt and warped comb response
  • Volt/octave pitch control
  • Through-zero linear FM input
  • Up to 5 unison and detuneable voices
  • Three signal outputs
Technical details
  • 24hp, skiff friendly
  • Current draw: +110mA / -80mA
  • Reverse power protection

Hel is an universal expander module which offers paraphonic generation of 3-voice and 5-voice chords in Odessa.

Odessa also offers integration with the Leibniz Binary Subsystem. Connecting an expander like Lipsk, allows one to enable and disable the individual groups of partials as defined by the bank length parameter.

Demos & Tutorials