b56d0e1fb6
Withdraws my conclusion that the monitor-sink capture route cannot be fixed by configuration, and with it the claim that only an in-emulator tap would work. The container has no audio hardware -- no /proc/asound/cards, no /dev/snd, no asound.conf -- so PulseAudio s stock default.pa module-always-sink supplies a null sink, whose whole purpose is to exist when there is no device. A null sink has no hardware clock: it is timer-driven, and anything the client fails to write in time becomes silence in the monitor. That much was right. What was wrong was inferring from it that the holes mean the guest runs below real time. The alternative was never tested: xenia asks SDL for channel_samples_ = 256, which is 5.33 ms at 6 channels, and daemon.conf here is stock with no fragment tuning. PULSE_LATENCY_MSEC overrides what SDL s PulseAudio backend requests. Measured, same title and sink and parec invocation: xenia default (~5.3 ms) 347.5 s 39.3 percent silence 30.5 gaps/s PULSE_LATENCY_MSEC=200 88.0 s 15.6 percent silence 3.5 gaps/s An 8.7x reduction from one environment variable. Against the port s controls -- starved 32.9 gaps/s, genuine music bed 3.3, voice track 0.03, bar at 20 -- the default is squarely starved and 200 ms lands at the level of real content. Not yet a clean bill of health: the runs are not like-for-like at 88 s against 347 s, and the short one covers the splash logos where silence is real. What is established is direction and scale. The consequence that matters is that the capture route should be retried at raised latency before anyone spends a session on a Canary rebuild. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
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.