Turns a source recording plus a crop offset into the pack frank-tts
resolves by name: reference.wav (24 kHz mono pcm_s16le, 18-25 s), the
engine's own reference.spk / reference.rvq made from it, and manifest.json
provenance (source path + sha256, crop start/end, sample rate, duration,
tool, engine commit, voice name).
The extractor is qwen-codec from the pinned qwentts.cpp tree, and the
flags are its own usage text, not a guess: --model <codec gguf>, --talker
<base talker gguf>, -i <wav>, optional --device; there is no -o, so it
names both artifacts next to the input with the extension swapped, which
is why the pack's WAV is staged under its final stem.
The 10-second source-material invariant is enforced, not annotated: an
offset inside the forbidden region exits 1 before a directory is created,
and the gate is asserted a second time from the manifest that was just
written, together with the recorded sha256. Artifact sizes are checked
against the codec's own arithmetic (8,192 B x-vector; 22 B per 12.5 Hz
frame), so an engine bump fails the build instead of shipping a pack the
engine rejects at synthesis time — and the crop is refused up front when
it is too short to fill the .rvq window.
reference.wav is the file the façade gates on, so it lands last, after
the artifacts and the manifest: a voice name never exists on disk without
its artifacts behind it. Nothing is ever deleted — an existing pack is
refused unless --force, which retires it whole to .AGENTTRASH/ — and
--dry-run runs every step except the extractor, so the seam can test the
gate without the engine.
Frank
2242fcfec0