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threejs-audio

Skill9 starsChanged 54 days agoApache-2.0View on GitHub

three.js audio spatialization: AudioListener attached to camera rig, Audio and PositionalAudio sources, AudioAnalyser for FFT/time-domain data, and integration with Web Audio API contexts; AudioLoader is referenced from threejs-loaders for file decoding. Use when placing 3D sound, configuring panner parameters, or visualization; not a replacement for full game audio middleware.

2 other projects use a version of this.

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Most recently taken up by

The file

We split this skill into the rules it gives an agent

3 rules. About 0 are common, 2 are distinctive, and 1 is 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.

  • 1

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Ensure world units match distance model expectations.

    line 57
  2. Distinctive:

    When answering under this skill, prefer responses that:

    line 65
  3. Very specific:

    Avoid promising DAW-level mixing—stay within three.js audio scope.

    line 71

≈ “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.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

When to use this skill

ALWAYS use this skill when the user mentions:

  • AudioListener on Camera, Audio vs PositionalAudio, distance models, refDistance/maxDistance/rolloff
  • AudioAnalyser for visualization bars/spectrum
  • Browser autoplay policies blocking audio start

IMPORTANT: audio vs loaders

StepSkill
Decode mp3/ogg bufferthreejs-loaders (AudioLoader)
Spatial playback APIthreejs-audio

Trigger phrases include:

  • "PositionalAudio", "AudioListener", "AudioAnalyser", "panner"
  • "空间音频", "音量衰减", "频谱"

How to use this skill

  1. Attach listener to camera object so head-related audio follows view.
  2. Create context compatible with user gesture unlock patterns in browsers.
  3. PositionalAudio: set refDistance, maxDistance, rolloffFactor, distanceModel per docs.
  4. Load buffer via AudioLoader (threejs-loaders), then positionalAudio.setBuffer.
  5. Analyser: connect graph listener.context.createAnalyser() pathways per examples; watch performance.
  6. Update: audio nodes usually need no per-frame update unless following moving sources manually.

See examples/workflow-positional-audio.md.

Doc map (official)

Docs sectionRepresentative links
Audiohttps://threejs.org/docs/AudioListener.html
Audiohttps://threejs.org/docs/Audio.html
Audiohttps://threejs.org/docs/PositionalAudio.html
Audiohttps://threejs.org/docs/AudioAnalyser.html

Extended list: references/official-sections.md.

Scope

  • In scope: Core Audio classes, spatialization parameters, analyser usage overview.
  • Out of scope: FMOD/Wwise-style authoring tools.

Common pitfalls and best practices

  • Autoplay restrictions require user interaction to resume AudioContext.
  • Too many positional sources hurt CPU—pool or LOD audio.
  • Ensure world units match distance model expectations.

Documentation and version

Audio classes are under Audio in three.js docs. Decoding buffers uses AudioLoader—see threejs-loaders. Browser Web Audio policies are external but must be mentioned when AudioContext is suspended.

Agent response checklist

When answering under this skill, prefer responses that:

  1. Link AudioListener, PositionalAudio, or AudioAnalyser as relevant.
  2. Delegate file loading of sound buffers to threejs-loaders (AudioLoader).
  3. Note autoplay / user-gesture requirements for resuming context.
  4. Relate distance attenuation to world units and threejs-objects placement.
  5. Avoid promising DAW-level mixing—stay within three.js audio scope.

References

Keywords

English: audio, positional audio, listener, analyser, spatial sound, web audio, three.js

中文： 音频、空间音频、AudioListener、PositionalAudio、Web Audio、three.js

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