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open-standards/wai/audio-conformance/README.md
Transaction Science 46c5688b86 wai: the WAI open standard — full cargo-class surface + provenance 
Commit the WAI standard source: a content + capability-dispatch standard
whose thesis is "carries whatever it can reconstruct, verifies whatever
it carries." Source only — large vendored/model assets and build output
are gitignored.

Reconstruct classes (each: spec + conformance corpus + in-tab browser
sink that re-derives the corpus hash, one wai.det.fixed64 fixed-point
floor, one *-equivalence apiece):
  - interactive worlds  (replay-equivalence)   + 3 sim registrants,
    multiplayer over a relay, session receipts, glTF + real SPZ assets
  - spatial audio        (mixdown-equivalence)
  - haptics              (sample-equivalence)
  - state-feeds          (replay-equivalence, non-physics sim)
  - avatars / digital humans (pose-equivalence) + telepresence over the relay
  - volumetric / 4D splats   (frame-state-equivalence) + WebGPU EWA render,
    real-SPZ-derived clip

Verify half (lever 4):
  - asset provenance: a signed, energy-accounted lineage for opaque
    captured content WAI does not reconstruct; tamper-evident, in-tab.

Cross-cutting: JWP receipt profiles per class; a native energy meter
(IOReport via macmon, no sudo) emitting receipts with REAL measured
joules; the learned-image/neural codec family and JPEG AI entropy port
from earlier work.

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-06-13 22:28:51 -04:00

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Spatial-Audio Conformance Corpus

Vectors for the spatial-audio extension's mixdown-equivalence criterion: given the same wai.audio.scene and the same declared output layout, a conforming sink MUST produce the identical canonical PCM, hence the identical BLAKE3 — on every machine, no tolerance parameter. The audio counterpart of replay-equivalence.

All vectors mix to the mandatory stereo floor under the wai.det.fixed64 numeric profile, wai.audio.pan.sqrt_constpower pan, wai.audio.dist.inverse_clamped distance. Sources are deterministic synthetic tones (no clock, no entropy); in a real sink they'd be decoded wai.audio.* assets — the corpus provides the decoded mono PCM so each vector isolates the one new thing, the deterministic mixdown.

Layout

  • vectors/<name>.wscn — the scene container (contract + object table + asset table).
  • vectors/<name>.sources.bin — the decoded mono sources: n u32 | n × (hash[32], len u32, i16le[len]), sources in hash order.
  • expected_hashes.json — per scene: scene_hash, layout, and the expected mixdown_hash.

Vectors:

  • stereo_pair — two static sources, hard-left + hard-right.
  • distance — one source placed near vs. far (inverse-clamped atten).
  • moving — a source whose keyframed trajectory sweeps left→right.

Running

cd ../wai-rs
cargo run --features audio_scene --bin wai_audio_vectors -- verify ../audio-conformance
cargo run --features audio_scene --bin wai_audio_vectors -- gen    ../audio-conformance   # regenerate

Pass = hash equality. A failed vector is a conformance failure of the file or the sink — report it failed, never approximately right.