Originally designed by Grant Richter and released in FracRack as the Wiard Model 1210, Malekko has officially brought the NoiseRing to Eurorack.

The NoiseRing is an uncertainty module which is based around an analog noise source and a shift register in lieu of a more standard sample and hold procedure. The random voltages are derived from analog noise, which is first fed through a comparaor, which based on amplitude releases either a noise value or no value. This random pattern of noise is then fed through an eight stage shift register. The clock value controls the generation of both of these patterns. An external clock can also be used.

The output of the shift register can be fed back into itself via the "Change" control. This allows for more repetitive patterns of noise and random voltage to occur, as it can disallow new data from entering into the shift register. Further variation of the uncertainty is introduced by the "Chance" parameter, which has an additional external input. The resultant randomness of this module offers a distinctly different character of uncertainty than Buchla 266 derived designs. The NoiseRing is uncertainty for the connoisseur.


Digital noise source

Pseudo random shift register

Internal clock with output

Noise output

2 random voltage outputs

Chance input

External clock input


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