On ty-20261112-1401-952-0000-2.mp4 the per-window estimates ranged from +400 to -370 ms and
only one window cleared 0.35, yet the tool printed "-370 ms, adjust by +370" from an overall
correlation of 0.08. A number that wrong is worse than no number: it invites another build.
Now: windows above 0.35 must also agree within 150 ms, and anything weaker reports
"unmeasurable" with the remedy — three claps with the hands in the webcam frame, two seconds
apart, which gives a sharp visual and audio transient instead of a mouth-motion proxy.
Also reverted an onset-based envelope tried on the same clip: it dropped the best window's
correlation from 0.47 to 0.08, so the plain level envelope stays.
What the run did establish: lengths match (15.555 s video against 15.601 s audio, 0.3%), and
the log confirms "mic delay 350 ms" was applied — the drift fix and the delay wiring both hold.
gramps
514fb8480d