Tamed random source. Two symmetric clusters (yellow, green) each provide three synced S&H outputs — one raw, one 2ⁿ-quantised to semitones, one n+1-quantised to octaves — plus a fluctuating output. Four noise colours (blue, white, pink, red).
Each cluster's three stepped outputs (raw S&H, 2ⁿ semitones, n+1 octaves) update simultaneously from the same trigger. The three values are sampled from independent thermal-noise streams, so they are uncorrelated — one chord voice can have pitch, timbre, and amplitude coming from one cluster without phase-locking.
Each S&H samples a dedicated thermal-noise source, not a pseudo-random generator. 30-minute warmup is recommended — the module needs to reach operating temperature for the noise floor to sit in the working range.
Routes the opposite cluster's clock into this cluster's trigger circuit. Both internal and external clocks still obey the switch. Used to densify one side or create polyrhythmic S&H patterns from two independent rates.
A single knob controls both the fluctuating voltage speed and the random-clock density. Turning CW raises fluctuation rate and adds more random triggers; CCW slows and thins them. CV at C.3 modulates both simultaneously — modulating tempo feel and smooth-CV speed with one signal.
Up (additive): random clock outputs all main-clock pulses plus extra random triggers. Down (subtractive): randomly removes triggers from the main sequence — a gate with holes. Useful for generative percussion where you want rhythmic variation instead of density increase.
Does not clip the voltage range — it biases which values are more likely within the existing pool. Unlike the n knobs (which resize the pool), probability skews frequency of occurrence. Lower-voltage values still appear when CW, just rarely.
Patching the Clock Input disables that cluster's internal clock and the clock-rate knob. External clock must have steep rising edges — sine/triangle won't sample. Main Clock output mirrors the external clock (useful for clock cleanup).
FRV output is continuous and independent of clocks and gates. Treat it as a smooth independent LFO-rate random source that happens to share a rate knob with the random-clock density.
| per cluster | Clock Rate | Internal clock frequency driving the S&H triggers. ~0.1 Hz – 60 Hz · CV modulated via Gate/CV input |
| per cluster | Single / Both Switch | Routes the other cluster's clock into this one for density mixing. centre: own clock · flip: add other cluster's clock into own trigger stream |
| per cluster | Random Clock Mode | Additive or subtractive blend of the random clock with the main clock. up: add randoms to main · down: randomly remove triggers from main |
| per cluster | Gate/CV Modulation Switch | Selects what the Gate/CV input does. CV mode: modulates clock rate · Gate mode: >3 V manually triggers S&H |
| per cluster | Sample-and-Hold Button | Manual trigger. Overrides clock while held. LED lit while depressed. momentary · main clock out still pulses normally |
| per cluster | n+1 Value | Sets the number of octaves in the n+1 quantised output pool. n=1: 2 octaves · n=2: 3 · n=3: 4 · n=4: 5 · n=5: 6 · n=6: 7 · 0 V–6 V range |
| per cluster | 2ⁿ Value | Sets the exponent of 2 for the semitone-quantised output pool. n=1: 2 notes · n=2: 4 · n=3: 8 · n=4: 16 · n=5: 32 · n=6: 64 stages (0 V – 5.25 V over 1/12 V steps) |
| per cluster | FRV Rate / Global Rate of Change | Speed of the fluctuating random voltage. Also biases main clock density. CW: faster fluctuation + denser random clocks · CCW: slower · CV via C.3 |
| Global | Probability Distribution | Biases the voltage magnitude the S&H circuits are likely to output. noon: medium voltages favoured · CCW: lower · CW: higher · does not clip the pool |
| Per S&H output (×4) | Probability Distribution Switch | Opts each S&H into the global probability bias. one per output: raw S&H, 2ⁿ, n+1, fluctuating |