The ADV audio capture I shared with the port is withdrawn as evidence. They
could not match it against anything -- the movie bed, any of the three voice
streams, BGM_103, S00A -- with best-vs-runner-up margins of 0.001 to 0.016
everywhere, and they controlled that three ways before saying so. They also
noticed capture channels 3 and 6 were byte-identical.
That duplicate pair reproduces without the emulator, and it is my capture chain.
Six channels each carrying a different tone, played to the null sink and
recorded from its monitor with the same parec invocation:
sink map NOT matching the client (the original setup)
expected 400 800 200 1600 3200 6400
captured 400 3200 200 800 800 200 ch2 == ch5 byte-identical
sink map made identical to Canary s stream map, and passed to parec too
captured 400 800 200 1600 3200 6400 no duplicates -- CONTROL PASSED
PulseAudio remaps when the maps differ, and a 6-channel remap silently drops
channels and duplicates others. No error, no warning; the WAV has the right
length, channel count and plausible per-channel levels.
Withdrawn with it: "all six channels carry signal", and the observation that
non-zero surround and LFE weakly supported the 5.1 reading of a voice cue s
three streams. The port said a duplicated channel is not an independent one and
they were right before this control existed.
Unaffected: the three-XMA-context concurrency result, which is read from the
emulator s own log rather than the audio path, on two independent boots.
The control needed no emulator, no disc and thirty seconds. It was not run, an
artefact was published, and the person who found the defect was the one who
could not see the instrument.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
e2c599fa72