Noise Engineering — Integra Solum

Manual PDF

Noise Engineering Integra Solum — Cheat Sheet

What it is

Dual rotating clock divider / trigger generator with 2 independent sides, each with: - 1 Clock input - 1 Reset input/button - 1 Shift (offset) control/CV - 8 trigger outputs - 1 mode selector

A single clock and/or reset can be used for both sides thanks to normalled inputs.

Quick use

Patch a clock into either Clock input.
If only one clock is patched, it normals to both sides.
Choose a Mode on each side:
/2N = powers-of-two divisions
N = sequence of 8
/2N+1 = odd-number divisions
Turn or CV the Shift control to rotate which output is “first.”
Patch any of the 8 outputs per side to envelopes, drum voices, switches, sequencers, etc.
Use Reset input/button to restart the pattern alignment.

Controls

Shift knob / CV

Rotates the output order.
Example: jack 2 becomes step/output 1, then jack 3, etc.
Lets you re-map the rhythm across the 8 outputs without changing the clock.

Mode switch

Three standard modes per side: - /2N — divide by powers of two - N — sequence of eight - /2N+1 — divide by odd numbers

Reset button

While held, all clock processing pauses.
When released, the divider resets on the first clock after release.

Wack mode

Hidden randomized mode.

Enter/exit Wack mode

One side: hold that side’s Offset/Shift knob, then press Reset
Both sides: hold both knobs, then press Reset
Works when both sides are in regular mode

Wack mode behavior

/2N: probabilistic divide-by-2 behavior
each step has a 50% chance to generate a trigger
N: one random trigger output per step
/2N+1: all 8 outputs act independently
on each rising clock, each output has a 50% chance of triggering

Jack Reference

Inputs

Clock input (x2, one per side)

Function: Advances that side’s divider/generator on a rising edge
Clock threshold: responds at about 3.3 V
If only one clock is patched, it is normalled to the other side
Timing latency: outputs update about 70 µs after the clock edge

Reset input (x2, one per side)

Function: Resets the state of that divider section
Inputs are also described as normalled behavior when using shared reseting across sides
Useful for re-aligning patterns to bar starts or master transport

Shift CV input (x2, one per side)

Function: Rotates the output assignment/order for that side
Manual does not specify CV input voltage range

Outputs

Trigger outputs (16 total; 8 per side)

Function: Trigger streams based on selected mode and shift
Output voltage range: 0 V to 5 V
Trigger goes high at approximately 3.4 V
Suitable for triggering most Eurorack gate/trigger inputs

Per-side output behavior summary

Mode: /2N

Outputs represent divisions by powers of 2
Best for classic clock division trees

Mode: N

Outputs behave as a sequence of 8 steps
Good for stepping across 8 destinations rhythmically

Mode: /2N+1

Outputs represent odd-number divisions
Good for less symmetrical polyrhythms

Shift effect

Reorders which physical jack corresponds to the beginning of the cycle
Great for changing groove without repatching

Voltage / Timing Summary

Clock input threshold: ~3.3 V
Trigger outputs: 0 V to 5 V
Trigger high level: ~3.4 V
Output update latency: ~70 µs
Shift CV range: not specified in manual
Reset input voltage range: not specified in manual

Physical / Power Specs

Type: Rhythm Modifier
Width: 8 HP
Depth: 0.8 in
Power connector: 2x5 Eurorack
+12 V: 90 mA
-12 V: 35 mA

Practical patch tips

Use one master clock to drive both sides for related rhythms.
Use separate clocks for independent polyrhythmic structures.
Send resets from a master sequencer every 16 or 32 steps to keep patterns anchored.
Use Shift to remix which destination gets which subdivision.
Try one side in standard mode and the other in Wack mode for a stable/random layered rhythm setup.

Ultra-short workflow

Clock in
Pick mode
Rotate with Shift
Patch outputs
Reset to re-align
Enable Wack mode for randomness

Generated With Eurorack Processor