Occult Thru-Zero Waveshaping VCO

Nekyia Circuits Occult

Occult from Nekiya Circuits is an analog, thru-zero FM oscillator fit for all manner of modular spells, outfitting any patch with potent components for crafting unique tones. Highly stable across a wide, seven octave frequency range, this triangle-core sound source provides a vast array of waveshaped outputs, giving you waveforms both arcane and essential from a generous suite of nine individual audio outputs. Basic shapes like sine, triangle, saw, square, and pulse are perfect for classic tones and modulation curves, with two suboctave sources for thickening up any boiling, toiling tones within your patch.

When Occult divulges from the material plane of normative waves, the real magic starts to happen. Two unique waveshaper circuits, including Ian Fritz's "double pulser" circuit and a Shaper which crossfades smoothly between sine, an external input, or the Pulser output itself, give you a wide range of timbral manipulations to explore. Dedicated inputs for both thru-zero and exponential FM modulation, PWM, and selectable hard or soft sync capability take Occult even deeper into the netherrealms of Eurorack esoterica, providing a comprehensive cauldron for sonic exploration.

With each parameter accessible via voltage control, Occult only grows in power within your case's coven of modular devices. Perfect as a centerpiece to a physically small yet sonically vast system and commanding just as much attention in a monstrous megarack, Occult from Nekiya Circuits is sure to speak to any knob-wielding mage.

Occult Features

• Fully analog, thru-zero FM VCO and LFO with unique waveshaping
• 9 independent wave outputs including sine, triangle, ramp, square, pulse, two suboctave outputs, and two waveshaper outputs
• 2 waveshaper circuits:
  • Pulser: based on the "double pulser" circuit by Ian Fritz, adding odd harmonics by introducing two pulse signals
  • Shaper: crossfades between normalized sine wave or external input and normal or inverted Pulser output
• Dedicated inputs for thru-zero FM, exponential FM, PWM, and selectable hard or soft sync
• All parameters can be controlled via CV