Same reasoning as the lab renders: the WAVs are copies of files that live in
~/Documents/Audacity4/ and are mirrored at
~/.umbra/library/author_voice_matrix/20261009T191636Z/. Git does not need a
third copy to be safe.
What stays is the part that is not duplicated anywhere else in a form git can
restore: author_v2.pt and author_v1.pt, 62 KB, the actual voice identity.
manifest.json keeps a SHA-256 for each WAV, so any copy can be verified against
what was captured rather than trusted.
RESTORE.md was wrong after this change and is fixed. It listed the WAVs as
files of the backup and told you to `cp BDMurphy_Voice_NOBG_v2.wav` from that
directory, which no longer works. It now states the WAVs are untracked and where
they actually are, and adds the verified matrix->WAV decode as a first-class
restore path, because that is the point: the WAV is derived from the matrix, not
a prerequisite for it.
Note the asymmetry this leaves in place, deliberately. Loss of the matrix means
losing the captured voice, and no WAV in existence could reconstruct the exact
one. Loss of the WAVs costs nothing, because they can be rebuilt from the
matrix. So the durable, unreproducible artifact is the thing that stays tracked.
80d8fb4d7e