The omp speech device forwards a voice only when the call passes voice_id - there is no setting that feeds one (speech.voice is the TUI speak-aloud Kokoro enum, tts.localVoice belongs to the local backend) - so every harness voiceover arrives with no voice key and the shim answered 400 "unknown voice None". Measured on the deployed endpoint 2026-10-18, from a restarted session with the speech role pointed here.
DEFAULT_VOICE makes the absent case a spoken operator choice instead of a code surprise: the pack named there answers a voice-less request and the journal line is marked (default), so an unrequested voice never reads later like a requested one. An UNKNOWN name still 400s with the list that exists - the no-silent-fallback law that this endpoint was built on is untouched, and the strict shape stays the code default (empty DEFAULT_VOICE), which the second new seam test pins. Ships narrator1 in scripts/frank-tts.env.
Phase 1 of the voice-over goal (Gitea issue #2). One stdlib-only HTTP facade in
front of whichever TTS engine wins the engine decision: POST /v1/audio/speech
with voice=<name> answers audio in THAT voice, where a name is real exactly when
/voices/<name>/reference.wav exists — an unknown name is a 400 listing the
voices that are, never a silent fallback (a wrong-voice endpoint stays wrong for
weeks). voice_id works as the alias the omp harness sends; response_format=mp3
is really mp3 (ffmpeg re-encode); oversized input is refused with 414 instead of
half-narrated; /health reports the backend and the resolved voice list.
Two backends behind the one surface, chosen by TTS_BACKEND: omni-http forwards to
an OpenAI-shaped upstream carrying the voice as base64 reference_audio, and
llama-tts-cli runs a local binary per request with --tts-speaker-file at nice 19
so narration never starves the text endpoints. Both are driven in the seam
through stubs — no GPU, no containers.
Named frank-tts, a first-class fleet model endpoint: port 7772 in the 7770/7771
family, alias naming per the StarCraft law, rootless boot-persistent self-healing
quadlet with a read-only /home/dank/voices mount. Voice-pack law recorded in the
env header: reference.wav PLUS the engine's own speaker artifact (required, so a
voice is reusable in other runtimes), plus manifest.json provenance with offsets
always past the first 10 s of the source file.
Not deployed: the engine decision, the pack builder, deployer/homepage/Prometheus
registration and the omp models.yml runner row are phase 2.
Frank