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sound-engine

Skill0 starsChanged 4 months agoMITView on GitHub

Web Audio API sound design system for UI interactions. Synthesizes tactile, iPhone-y sounds (clicks, ticks, whooshes, chimes) with zero external files. React context provider + floating toggle button. Sound off by default.

The file

We split this skill into the rules it gives an agent

2 rules. About 0 are common, 2 are distinctive, and 0 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈2

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 0

    Very specific

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  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Always create AudioContext lazily (not on mount) to avoid browser autoplay blocks

    line 45
  2. Distinctive:

    Keep sounds SHORT (20-60ms for clicks, 200-400ms for transitions)

    line 46

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

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Files
SKILL.md

Sound Engine

A complete UI sound design system using the Web Audio API. All sounds are synthesized in real-time with zero external audio files. Provides a React context so any component can trigger sounds.

When to Use

  • Premium interactive experiences
  • Proposals / pitch sites
  • Product demos
  • Any UI where tactile feedback adds polish

Sound Library

NameDescriptionUse Case
tickSubtle mechanical clickCard hover
clickTactile pop with body thudButton press
flipWhoosh + paper snapCard flip
slideFiltered noise sweepPaper/drawer movement
crackSharp transient + resonanceBreaking/dismissing
unlockRising chime + sparkleAccess granted, success
tabLight tapTab/nav switch
revealGentle rising toneScroll reveal
bubbleWobbly sine waveChart interaction
toggleQuick square wave clickSound on/off
typeRandomized key tapTyping feedback
successC-E-G major chordCompletion
whooshBandpass noise sweepTransitions

Architecture

  • SoundProvider - wraps app, creates AudioContext lazily on first interaction
  • useSound() - hook returning { enabled, toggle, play }
  • SoundToggle - floating button (bottom-right) for on/off
  • Auto-unlocks AudioContext on user gesture (mobile Safari compatibility)
  • Master volume at 0.6, individual sounds mixed for balance

Key Lessons

  • Always create AudioContext lazily (not on mount) to avoid browser autoplay blocks
  • Keep sounds SHORT (20-60ms for clicks, 200-400ms for transitions)
  • Exponential ramps to 0.001 (not 0) to avoid audio pops
  • Randomize frequency slightly for repeated sounds (typing) to feel natural
  • Sound OFF by default - let users opt in

Reference Implementation

See reference/SoundEngine.tsx for the complete system.

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