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w1n5t0n 925ddc5be6 feat(playground): add volume safety limiter, devmode tame parameter, and voice buildup mitigation 
- Insert DynamicsCompressorNode as always-on brick-wall limiter after
  master gain (threshold -6dB, ratio 20:1, 2ms attack)
- Add devmode tame parameter (0-1) controlling range constraining:
  - ?tame=0.7 URL param (default) or window.setTameLevel(n)
  - 0 = no mitigation, 1 = strongest constraining
- Constrain 20 volume/buildup-sensitive params with safeMin/safeMax:
  - Envelope release/decay2 times capped to prevent infinite ringing
  - Envelope gains kept in moderate range
  - All 5 drive stages (ShpA/B, FB, Out, Cabinet) capped
  - Output mixer levels given floor and ceiling
  - Echo feedback and reverb size limited to prevent wash buildup
- Fix Comb Filter group count (8, not 9) in comments and color generator
2026-03-22 00:15:11 +02:00
..
c15 feat(playground): add C15 synth mode with NISPS-controlled parameters and arpeggiator 2026-03-21 22:26:37 +02:00
css feat(playground): expand C15 param map from 20 to 126 synth parameters 2026-03-21 22:58:48 +02:00
js feat(playground): add volume safety limiter, devmode tame parameter, and voice buildup mitigation 2026-03-22 00:15:11 +02:00
index.html feat(playground): add C15 synth mode with NISPS-controlled parameters and arpeggiator 2026-03-21 22:26:37 +02:00
README.md docs: update CLAUDE.md and playground README for 126-param C15 map 2026-03-21 23:11:45 +02:00
serve-coop.py feat(playground): add C15 synth mode with NISPS-controlled parameters and arpeggiator 2026-03-21 22:26:37 +02:00
serve.sh feat(playground): add C15 synth mode with NISPS-controlled parameters and arpeggiator 2026-03-21 22:26:37 +02:00

README.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.