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Each *-conformance/README.md now has a line that begins **Provenance.**: the generator that writes the corpus and its input, and for an input not generated here its source and licence. OER/2's corpus is settled and left as it is. byte-exact-conformance and quantum-ops-conformance get a README. wai-rs/tests/vectors/README.md gives a row per vector directory. Where the staged-delivery, staged-measurement and telemetry READMEs called their content "synthetic", that sentence is now their provenance line. Two vectors are recorded as not generated, from the provenance audit: int_video's video_real (a pan over a third-party picture) and neural-conformance's photo (a third-party picture, with a decoder trained on unrecorded images). Their lines say so and that they are to be replaced; the photo bullet no longer names the picture's source product. tests/corpus_provenance.rs requires the line in every corpus and a row for every vector directory; CI runs it with the carriage tests. CONTRIBUTING states the rule: corpus content is generated here, or recorded with a licence that permits redistribution, and a word like "synthetic" is not a provenance line. Co-Authored-By: Claude Opus 5.5 <[email protected]>
41 lines
1.8 KiB
Markdown
41 lines
1.8 KiB
Markdown
# Spatial-Audio Conformance Corpus
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Vectors for the spatial-audio extension's **mixdown-equivalence**
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criterion: given the same `wai.audio.scene` and the same declared output
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layout, a conforming sink MUST produce the identical canonical PCM,
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hence the identical BLAKE3 — on every machine, no tolerance parameter.
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The audio counterpart of replay-equivalence.
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**Provenance.** Generated here: `wai_audio_vectors gen` writes every scene and its sources, square-wave tones built in code. No recording.
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All vectors mix to the mandatory `stereo` floor under the
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`wai.det.fixed64` numeric profile, `wai.audio.pan.sqrt_constpower` pan,
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`wai.audio.dist.inverse_clamped` distance. Sources are deterministic
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synthetic tones (no clock, no entropy); in a real sink they'd be decoded
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`wai.audio.*` assets — the corpus provides the decoded mono PCM so each
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vector isolates the one new thing, the deterministic mixdown.
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## Layout
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- `vectors/<name>.wscn` — the scene container (contract + object table +
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asset table).
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- `vectors/<name>.sources.bin` — the decoded mono sources:
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`n u32 | n × (hash[32], len u32, i16le[len])`, sources in hash order.
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- `expected_hashes.json` — per scene: `scene_hash`, `layout`, and the
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expected `mixdown_hash`.
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Vectors:
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- `stereo_pair` — two static sources, hard-left + hard-right.
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- `distance` — one source placed near vs. far (inverse-clamped atten).
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- `moving` — a source whose keyframed trajectory sweeps left→right.
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## Running
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```
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cd ../wai-rs
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cargo run --features audio_scene --bin wai_audio_vectors -- verify ../audio-conformance
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cargo run --features audio_scene --bin wai_audio_vectors -- gen ../audio-conformance # regenerate
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```
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Pass = hash equality. A failed vector is a conformance failure of the
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file or the sink — report it failed, never approximately right.
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