Files
skate-3-rust-engine/tools
Hails 11ff8cd9c2 Setup: extract and decode the disc's game audio (new audio group)
- audio_formats.py: EA SNR (EA-XMA) stream scanner with block-chain
  validation, SPLC bank streams and patch tree (records, layers,
  containers; verified on all 20 banks), .grain files (speed-sweep
  recordings), loopable speed bands, gain-free 5->2 downmix.
- audio_export.py: decodes only what the engine plays (22 ambience
  beds, 14 grains x 6 speed bands, wheel spins, 23 sample banks) to
  PCM16 WAV in assets/private/audio with audio_manifest.json (v3,
  incl. SPLC patch trees). Decoder: pinned vgmstream r2117
  (SHA-256 checked) via the existing dependency() helper.
- Registered as optional asset group `audio` (versions, receipts,
  asset_exports, install); a failure records audio-availability.json
  and the game runs silent. Other groups' fingerprints unchanged.
- .gitignore: retail audio extensions and *.wav (Skyline mod WAVs
  excepted). Tests updated for the new group.
2026-10-01 17:37:30 -06:00
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