18412e6324
Three things verified against the re-export, none of them by reading the source. THE STEM READING IS CORROBORATED BY A NUMBER IT WAS NOT FITTED TO. Chunks are selected as "the longest, and everything tying with it" -- the movie's own length is not an input to that rule. The result now matches the picture to -0.114 s (ADV) and -0.085 s (S00A), where the concatenated version was +221 s and +161 s. THE VOICE REACHES THE MASTER BUS. `+ voice ADV` in the log proves only that a stream was found and played. The control is MODDING rule 4: 140 s of silence at data/mods/audio/voice/ADV.ogg shadows the exported file and changes nothing else, so no test-only flag was added to the runtime. The muted run reproduces the movie's own bed to 0.01 dB peak and 0.19 dB RMS; the unmuted run measures -22.913 dBFS RMS against -23.184 predicted for two incoherent sources at -24.941 and -27.965. 0.27 dB out. (A) SKIPS THE INTRO IN THIS BUILD. `--skip-at=25` ends the movie at 25.02 s through `Input.parse_input_event` and `_unhandled_input`, so the press-to-skip wiring is live and the play-test's report is not that bug. Untested here: a real key from a focused window. Unsettled anywhere: whether the GAME permits skipping an attract movie -- Q9, still amber, and if the answer is no this path is deleted rather than debugged. `check` accepts the new `voice` kind and holds it to the strict peak bound, with `bgm`, because it is a sum this exporter produced rather than a wave off the disc. FORMAT.md says what a `voice` entry is, that it keys by MOVIE NAME rather than by a role, and that its `why` names every chunk dropped. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01N7FiFFFwbvG2uxdcEh8HyF
Sylpheed
A clean-room reverse engineering and port project for Project Sylpheed: Arc of Deception (Xbox 360, 2007).
Three things live here, in one repository so that a change spanning them lands as one commit:
| The decoders | crates/sylpheed-formats — the disc's formats, read and verified disc-wide |
| The port | port/ — a Godot 4 project, plus crates/sylpheed-export which converts a disc into the open asset tree it reads |
| The corpus | docs/re/ — what has been reverse engineered, with its evidence, its retractions and its dead ends |
You need your own copy of the game. No game content is in this repository and none ever will be. The exporter reads the disc you supply.
The oracle is the real game
sylpheed-cliand the Explorer are tools for verifying our decoding. They are hypotheses under test and they have been wrong. When something must be checked against the truth, the truth is the game running in Xenia Canary, captured — not any renderer of ours.
This is stated first because getting it backwards is the most expensive mistake this project has made.
Layout
crates/
sylpheed-formats/ the decoders. Disc-wide verified; the corpus is its spec
sylpheed-cli/ headless tools -- render a screen, dump a table, probe audio
sylpheed-viewer/ the Explorer: a human's window onto the disc. STATIC data only
sylpheed-export/ disc -> the open, moddable asset tree
port/ the Godot 4 project. Reads open formats ONLY
authored/ decisions that are NOT on the disc, each with its reason
data/
base/ generated by the exporter. Gitignored, never hand-edited
mods/ drop-in overrides. Yours
docs/
re/ the corpus: findings, refutations, method traps
game/ how the game is navigated -- menus, modals, flight
port/ the port's mission, its handoff contract, modding rules
agents/ how the agent team works together
tools/ capture harnesses, probes, the share tool
exchange/ transient inter-agent files. NOT in git
docker/ the agent containers
Where to start
docs/re/INDEX.md— what is decodeddocs/re/REFUTED.md— what has been tested and dieddocs/re/METHOD.md— traps this project has already paid fordocs/game/navigation.md— how the game is navigateddocs/port/MODDING.md— why the asset tree looks the way it does
Xenia Canary is a separate repository: it is a fork tracking upstream, and it carries our instrumentation.
Conventions
Confidence is per claim, never per document: ✅ CONFIRMED · 🟡 PROBABLE ·
❔ HYPOTHESIS · ❌ REFUTED. A withdrawn result is kept with its reasoning
rather than deleted — that is why the numbers here can be trusted.