Dual Multimode Resonator and Harmonic Processor

An interconnected dual filter system that evolves from standard lowpass duties into complex, dual-peak resonant structures.

Ceremony reimagines the classic Hordijk TwinPeak architecture for modern modular workflows. It functions as two distinct 18dB filters that merge into a single, cohesive voice. By adjusting the LP/BP control, you shift the fundamental character of the module, moving from a single lowpass peak into a dual-peak bandpass response. This allows for vocal-like formants and precise spectral carving that single filters cannot achieve.

The module excels at internal movement. Frequency B can modulate Frequency A via a dedicated FM path, while individual feedback loops for each filter stage introduce grit and non-linearities. When pushed into self-oscillation, the module behaves as a percussion and melodic voice. Pinging the inputs transforms the circuit into a dual-oscillator for plucky, metallic bells and organic wooden tones. A built-in voltage-controlled crossfader and an integrated VCA at the final stage mean Ceremony can act as a complete, self-contained voice or a sophisticated end-of-chain processor.