Erica Synths Black Digital Noise

Name: Black Digital Noise
Brand: Erica Synths

Polynomial-noise generator.

12 HP Eurorack module

Noise module producing a wide range of effects, from almost pure white noise and Atari-console-like one-bit noise to more-or-less predictable sounds.

Features

A programmable logic matrix uses two linear-feedback shift registers to generate polynomial-noise effects.
The two polynomial controls select four feedback segments each for 16 variations; a segment can sound different when re-entered because the polynomials shift within it.
Patching External Clock Input disconnects the internal clock.
Reset Input resets the polynomials from pulse, random-gate, audio, and similar signals.

Poly CV 2— Applies the second polynomial-feedback control voltage, up to ±10 V.
Noise Output— Noise audio output.
Polynomial 2— Selects one of four polynomial-feedback segments; together with Polynomial 1, provides 16 segment combinations.
External Clock Input— External clock input; patching a VCO or other signal disconnects the internal clock and makes the noise character follow its frequency.
Polynomial 1— Selects one of four polynomial-feedback segments.
Clock Rate— Sets the noise character with the internal clock, from very grainy noise fully counterclockwise to white noise fully clockwise.
Bit Width— Selects the noise bit width from 1-bit Atari-console-like noise to 4-bit noise.
Poly CV Attenuator— Sets and attenuates both polynomial-feedback CV inputs simultaneously.
Reset Input— Resets the polynomials from an incoming pulse, gate, random, or audio signal.
Poly CV 1— Applies the first polynomial-feedback control voltage, up to ±10 V.