Cosmopolitan

Dual phase distortion oscillator

The Cosmopolitan is a dual Phase Distortion Oscillator Eurorack module with two independent oscillators capable of generating eight shapemodulatable waveforms.

Phase Distortion Synthesis
Phase distortion synthesis generates waveforms by speeding up one part of a sine wave while slowing down the second part. This technique gives excellent musical control over the timbre of the waveform.

Shape Modulation
The timbre of each waveform can be changed in real time by the SMOD control voltage or by turning the SHAPE control.
For the first five waveforms, with the exception of the PWM Pulse, the timbre will vary from a lucious sine wave to a harmonically rich sound; an effect similar to a lowpass filter opening up. The shape controls the pulse width of the PWM Pulse, for those classic string and lead sounds.
The last three waveforms have a highly resonant character where the resonant frequency is controlled by the shape setting. These waveforms are good for making hair raising sweeps and growling bass sounds.

Applications
Add a VCA and an envelope generator and you have a dual-oscillator synth voice! The Cosmopolitan plays well in all systems, from minimal setups to wall-covering behemoths.

Oscillator Tuning
The Cosmopolitan simplifies oscillator tuning. Just apply a C note pitch CV and turn the TUNE and FINE controls until the tuning LEDs reach minimum brightness. The oscillator is now properly tuned within the octave.

(Power specifications are estimates and not exact!)

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