The Fancyyyyy K-Accumulator - A Complex Oscillator Made of Complex Oscillators 👽

K-ACCUMULATOR - 21st Century Complex Oscillator video upload by Fancyyyyy Synthesis

Note, this appears to be the first Fancyyyyy post on the site. :)

Currently exclusive to Perfect Circuit

"The Fancyyyyy K-Accumulator is a revolutionary stereo complex oscillator that combines cutting-edge synthesis techniques in an intuitive, hands-on architecture inspired by classic complex oscillators. Designed in collaboration with Grrrwaaa aka Graham Wakefield, creator of Max/MSP's gen~ platform, fans of experimental timbres and novel synthesis techniques are right to celebrate K-Accumulator's emergence into the Eurorack landscape. Seamlessly combining pulsar synthesis, phase modulation, and complex 3D waveshaping, K-Accumulator pairs its modulation and carrier oscillator pairs with an onboard function generator, pattern generator, and flexible root frequency quantization and manipulation, providing fruitful terrain for exploring captivating timbres in systems of any size.

Starting from a core sine and cosine wave, K-Accumulator provides an innovative morphing matrix architecture which progressively remaps panel controls to waveshaping positions for the carrier and modulator oscillator section. Expand tones with complex harmonic wavefolding, blended frequency shifting, and harmonic stretching. Shape tones into newly mangled forms with formant synthesis, sync damping, and asymmetric phase modulation, or invite chaotic movement and surprise with damped cross phase modulation and damped self-feedback. Even the onboard function generator can sing, enabling audio rates for pulsar synthesis that can be operated independently from the main oscillator. Despite the PhD in DSP you might need to fully understand K-Accumulator's synthesis engine, the morphing matrix architecture allows these many manipulations to be smoothly and seamlessly explored through intuitive manual control.

Even further possibilities abound when employing K-Accumulators twenty-three patchable points of external signal integration, with most primary CV inputs featuring dedicated attenuverters for precision control. In addition to CV control over the frequency, shift, depth, morph, and shape controls, the primary oscillator in K-Accumulator offers CV inputs for thru-zero phase modulation, damped/pulsar control, and an external input which can be used as an external sync source or for pitch-tracking an external source to use K-Accumulator to harmonize with external sources. Its outputs offer both the sine and cosine waves, creating unique stereo space through the phase differences on each output as it is manipulated by the waveshaping engine. Control root frequency for the oscillator section, function generator, or both, with both 12-TET and Just Intonated quantization, multiple scales of frequency control, and a dedicated detune control in the modulation oscillator for inharmonic applications.

At the left side of K-Accumulator, a highly flexible function generator is onboard for additional modulation or audio sources. Multiple unique internal trigger modes, looping capability for LFO and audio rate oscillation, thru-zero FM, and onboard waveshaping make this a potent source of signal manipulation for either K-Accumulator itself or anywhere in your system. To the right of the function generator, a Delta-Sigma pattern generator enables stepped and smooth pseudo-random pattern modulation, providing an onboard sequencer for root frequency, or any other parameter. With its immensely capable and unique synthesis engine alongside flexible and creative onboard modulation sources, Fancyyyy's K-Accumulator offers a new vision of complex oscillation for contemporary modular synthesis, translating vanguard digital signal processing into a familiar form factor for deep sonic exploration, intuitive skronking, and new musical forms yet unheard."

Available at Perfect Circuit

K-ACCUMULATOR FEATURES

Digital complex oscillator

Combines multiple cutting-edge digital synthesis techniques in an intuitive form factor based on classic complex oscillators

Carrier and modulator oscillator architecture for flexible tone shaping

Integrated function generator and pattern generator with root frequency quantization enables use as full voice

Primary oscillator uses an eight-node matrix to progressively remap panel controls, enabling smooth transitions between multiple synthesis techniques

Harmonic wavefolding, frequency shifting, phase modulation, formant synthesis, damped cross modulation, and more provide flexible additive synthesis engine

Vast timbral range with oscillator controls and CV inputs for Frequency, Shift, Depth, Morph, Shape, and Damped / Pulsar control

External input for pitch-tracking harmonization with external source or use as sync input

Universal function generator with multiple trigger modes, looping capability, waveshaping, FM, and 1V/Oct time control

Delta-Sigma pattern generator for smooth or stepped pseudo-random sequencing

Root frequency control with 12-TET and Just Intonation quantization

Root 1V/Oct CV input can be sent to either or both the OSC and UFG

Sine and cosine outputs enables unique stereo output

Headers on back of module connect directly to Fancyyyyy Rung Divisions to drive Rungs with Clock and Data signals from UFG and MOD sections