addac-system/addac-swell-physics
ADDAC508 Swell Physics
A physics-simulation quad CV generator that models four virtual buoys on an ocean surface driven by Gerstner Wave mathematics, outputting their vertical positions as CV signals.1143
Capabilities 1
- Quad CV Generatorquad-cv-generator
- Generates four correlated but distinct CV signals derived from a Gerstner Wave physics simulation, with spread control, gate outputs, and average output.1143
Jacks 8 (1 in / 7 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (1) | |||
| CV IN | cv | — | Single CV input routable via the CV IN switch to either OFFSET or OUTPUT GAIN.1143 |
| Outputs (7) | |||
| AVERAGE OUTPUT | cv | — | Outputs the arithmetic average of all four CV outputs.1143 |
| GATE 1<2 | gate | ≤5V | Outputs a +5V gate signal whenever output 1 is lower in voltage than output 2.1143 |
| GATE 3>4 | gate | ≤5V | Outputs a +5V gate signal whenever output 3 is higher in voltage than output 4.1143 |
| OUTPUT 1 | cv | -5V to 10V | 16-bit CV output representing the vertical position of buoy 1; range ±5V or 0–+10V depending on BIPOLAR/POSITIVE switch.1143 |
| OUTPUT 2 | cv | -5V to 10V | 16-bit CV output representing the vertical position of buoy 2; range ±5V or 0–+10V depending on BIPOLAR/POSITIVE switch.1143 |
| OUTPUT 3 | cv | -5V to 10V | 16-bit CV output representing the vertical position of buoy 3; range ±5V or 0–+10V depending on BIPOLAR/POSITIVE switch.1143 |
| OUTPUT 4 | cv | -5V to 10V | 16-bit CV output representing the vertical position of buoy 4; range ±5V or 0–+10V depending on BIPOLAR/POSITIVE switch.1143 |
Parameters 9
| Name | Type | Range | Behavior |
|---|---|---|---|
| A / B MODE | switch | — | Selects between Scrolling (A) and Evolving (B) wave computation modes. Also used to set the clipping mode by rapidly flicking the switch back and forth faster than half a second.1143 |
| AGITATION | knob | — | A macro control that adjusts simulated wind speed and secondary swells, adding complexity and interference patterns to the primary wave.1143 |
| BIPOLAR / POSITIVE | switch | — | Toggles all four output voltage ranges between ±5V (bipolar) and 0 to +10V (positive).1143 |
| CV IN Switch | switch | — | Routes the single CV IN jack to either the OFFSET or OUTPUT GAIN parameter.1143 |
| OFFSET | knob | — | Applies a DC offset to all four CV outputs simultaneously, used together with OUTPUT GAIN to set the output voltage range.1143 |
| OUTPUT GAIN | knob | — | Final gain stage applied to all four CV outputs simultaneously, used together with OFFSET to set the output voltage range.1143 |
| SIMULATION SPEED | knob | — | Controls how fast the wave simulation runs, analogous to a frequency control on an LFO.1143 |
| SPREAD | knob | — | Sets the virtual distance between the four buoys; smaller values make outputs highly correlated, larger values make outputs more independent and decorrelated.1143 |
| SWELL SIZE | knob | — | Controls the virtual wave amplitude — the maximum voltage swing between the highest crest and lowest trough. Fully CCW yields still water (all outputs at zero in bipolar mode, or +5V in positive mode).1143 Zones
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Firmware history 2 versions
| Version | Released | Notes |
|---|---|---|
| D_6 | 2024-02-27 | Minor changes, improved performance.1143 |
| D_5 | — | Fixed an issue where at maximum speed the module controls would become unresponsive after a few minutes.1143 |
References 2
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[1143]
ADDAC508 Swell Physics User's Guide (REV01, January 2024)manual● verified 2026-06-06
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[1144]
ADDAC508 Swell Physics product pageproduct_page● verified 2026-06-06