Phase Displacement Oscillator

WMD´s Phase Displacement Oscillator is a hybrid oscillator module that combines the benefits and feel of an analog VCO with the possibilities of digital waveshaping.

Is uses the phenomenon of Phase Modulation (PM) e.g. the relative phase difference between the different outputs. The phase can be set or modulated to achieve interesting sounds. The result resembles FM but affects the outputs more without destabilizing the initial frequency. As the PM affects only the relative phase, not the frequency, the PDO can modulate itself which will create complex harmonic sounds. Their frequency seems to change but remains stable in fact.

Version Mk2 is 16HP wide, has 9 instead of 11 knobs and therefore more finger space. In addition the signal input routing is better and it consumes less power.

technical details
The analog VCO is temperature compensated and thus tracks over five octaves when played thru the 1V/oct input. It is sawtooth-based and beyond the classic waveform sine, triangle, sawtooth and square it offers also mixed waves. Controls for coarse and fine frequency tuning , hard sync, exponential and linear FM can be found as well.

Each of the waveforms can be assigned to each phase modulator. The phases (?) of channels 2-4 can be set between -360° and +360° by controls.

The additional SC (staircase) output is the result of the relative phases of the three phase input channels compared to the analog sawtooth waveform. It forms a staircase type output by adding together multiple square waves.

inputs and outputs
CV inputs: ?2, ?3, ?4 (normalized from 2 over 3 to 4), 1V/oct, exponential FM, linear FM, sync

outputs: individual outputs 1-4, sum output, staircase output

• 115 mA +12V
• ? mA -12V
• ? mA 5V
• 40 mm Depth

No info about availability.