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primitives.js (505 lines): All 8 sequencing primitives extending Primitive base class: - EuclideanRhythm: Bjorklund-distributed trigger patterns - ProbabilityGate: PRNG-based trigger filtering + accent assignment - PitchWalker: stateful constrained random walk with gravity - Ratchet: probabilistic step subdivision (1-4x) - SwingGroove: alternating-step timing offsets (max triplet feel) - DensityMorph: trigger placement with clustering control - IntervalLock: 11-scale pitch quantizer (chromatic→diminished) - VelocityShaper: 5 curve types with depth/phase control Includes PRIMITIVE_REGISTRY for chain builder UI. chain.js (319 lines): Sequential pipeline chain evaluator. Buckets primitives by category (generators→processors→converters→ timing), forks deterministic PRNG per primitive, merges multiple generators via additive (OR) or multiplicative (AND) mode (configurable in real time). Flat param distribution by chain position. Full state serialization for freeze support. |
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| .. | ||
| c15 | ||
| css | ||
| devlog | ||
| js | ||
| wasm | ||
| a-immersive.html | ||
| b-workbench.html | ||
| c-journey.html | ||
| designs.html | ||
| index.html | ||
| README.md | ||
| serve-coop.py | ||
| serve.sh | ||
| SPEC-shapeseq.md | ||
| TODOS.md | ||
NISPS Playground
Browser-based interactive demo of the NISPS ML engine.
Run locally
python3 -m http.server
# Open http://localhost:8000
Run the command from the playground/ directory.
What it does
- Maps 2D joystick input (X/Y) through an MLP (
[3, 32, 48, 64, 126]) to 126 outputs. - Visual mode: first 20 outputs drive a flow-field particle visualization on Canvas2D.
- Synth mode (C15): all 126 outputs control the C15 WASM synthesizer — envelopes, oscillators, shapers, filters, feedback/output mixers, cabinet, and effects.
- Supports two learning modes:
- Examples: add explicit input/output pairs and train.
- RL Feedback: give thumbs up/down while exploring outputs.
C15 synth parameters
The 126 synth parameters (js/synth/param-map.js) cover all sonically meaningful continuous parameters of the C15 engine. Excluded from the C15's 287 total params:
- Hardware routing (56) — no physical MIDI in browser
- Macro controls (12) — conflicts with direct ML control
- Scale/tuning (13) — would break pitch
- Key tracking / velocity (22) — depend on note context ML can't observe
- Envelope mod depths (19) — too many multiplicative interactions for 2-input ML
- Discrete/structural/dangerous (19) — pitch sweep, volume, switches, resets
- Secondary config (15) — curves, chirp, shaper blend, source selects
UI controls
- Output mode tabs (side panel): switch between Visual and Synth modes.
- Expand / Collapse button on the canvas: makes the visual surface nearly full-screen and compresses lower controls into a minimal view.
- Presets: quick demo mappings (
Calm/Chaos,Rainbow,Vortex) — visual mode only. - Help (
?) overlay: in-app usage guide. - Follow mode: double-click joystick in RL mode to toggle no-hold interaction.
- Keyboard in Follow mode (RL):
2= thumbs up,1= thumbs down. - Gamepad in RL:
RB= thumbs up,LB= thumbs down.
Files
index.html- page structure.css/style.css- layout and visual styling.js/app.js- app wiring and interaction logic.js/ui/- visualizer, joystick, controls, parameter display.js/nisps/- JavaScript MLP + IML core.js/synth/- C15 WASM bridge, parameter map, arpeggiator.c15/- C15 engine WASM binary and parameter definitions.