Dreamodus/DreamKnob
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Dreamodus 68777fd00e Synth: eliminate crackling - limiter, LFO clamp, click-free envelopes 
The crackle was software (our audio graph), not hardware:
- Peaks past 0 dBFS were being hard-clipped by the DAC (resonance up
  to +27 dB and delay feedback easily exceed full scale). Added a
  brickwall-style DynamicsCompressor (-3 dB, 20:1, 2 ms attack) before
  the destination; worst-case output now peaks around -6 dB RMS.
- LFO cutoff modulation is clamped below the cutoff value so the
  filter frequency cannot be driven negative (high-Q biquad near 0 Hz
  sputters audibly).
- Envelope retriggers use cancelAndHoldAtTime (with fallback) instead
  of cancel+set, removing step-discontinuity clicks on fast replays.
- Synth meter clip threshold moved to -1 dBFS: the LED now reads as a
  limiter-activity indicator since true output clipping is gone.
2026-07-12 20:47:01 -07:00
apps/docs Synth: eliminate crackling - limiter, LFO clamp, click-free envelopes 2026-07-12 20:47:01 -07:00
packages/dreamknob Meter: proper clipping indicators 2026-07-12 20:20:54 -07:00
.gitignore Initial release: dreamknob library + showcase 2026-07-12 14:26:52 -07:00
package.json Initial release: dreamknob library + showcase 2026-07-12 14:26:52 -07:00
pnpm-lock.yaml Initial release: dreamknob library + showcase 2026-07-12 14:26:52 -07:00
pnpm-workspace.yaml Initial release: dreamknob library + showcase 2026-07-12 14:26:52 -07:00
README.md Docs accuracy pass, guides, and a playable Web Audio synth demo 2026-07-12 18:27:06 -07:00

README.md

dreamknob

A feature-full, studio-grade React + TypeScript knob & fader library with a headless interaction core — plus a showcase/documentation site.

pnpm install       # install everything
pnpm dev           # run the showcase at http://localhost:5173
pnpm test          # library unit tests
pnpm build         # build library + docs

Workspace layout

Path What it is
packages/dreamknob The library. Zero runtime dependencies, ESM + CJS + .d.ts.
apps/docs Vite showcase: gallery, live playground with code generation, API docs.

The library in 10 seconds

import { MetalKnob, LEDKnob, Fader, logTaper } from 'dreamknob'

<MetalKnob size={90} min={0} max={100} step={0.5} defaultValue={64} label="Gain" />
<LEDKnob min={20} max={20000} taper={logTaper} defaultValue={632} label="Freq" />
<Fader min={-60} max={12} step={0.5} unit=" dB" defaultValue={-6} label="Out" />
  • Feel: grab-and-rotate rotary tracking (rc-knob style) with pickup/relative modes, or relative vertical / horizontal drag (DAW plugin style), or absolute track dragging for faders. Scroll-wheel nudge, full keyboard support, Shift+scroll for fine control, double-click reset, touch via pointer capture, proper role="slider" accessibility.
  • Numbers: any range (negative, fractional, huge), decimal step with float-drift-safe rounding, discrete values lists, evenly spaced detents (steps), linear / log / power / custom tapers.
  • Styles: FlatKnob, MetalKnob, RubberKnob, VintageKnob, LEDKnob, NeonKnob, SteppedKnob, ImageKnob (film-strips), Fader, LEDFader, Meter, XYPad, PushButton, SegmentDisplay, AlphaDisplay — every color themeable per instance.
  • Composable: <Knob> + primitives (Arc, Pointer, Ticks, TickLabels, Face, KnobValue, KnobLabel, GlowFilter) for custom designs, or go fully headless with useKnob.

See packages/dreamknob/README.md and the docs app for the full API.