generate_audio gains output_path + format params (wav, mp3, ogg, flac,
m4a). Non-wav formats route through ffmpeg (added to the Dockerfile).
Files land under /output/ inside the container, bind-mounted from the
host's TTS_OUTPUT_HOST_DIR (defaults to ~/mcspeak-out). Subdirectories
are auto-created. Path validation rejects writes outside /output/ —
both absolute escapes like /etc/passwd and traversal forms like
../../etc/passwd are canonicalized and checked against the mount root.
Extension auto-corrects to match the requested format.
piper-tts service added to compose using rhasspy/wyoming-piper. Default
voice es_MX-ald-medium is pre-warmed at container start and persists in
./piper-data/ across recreates (~60 MB download on first run). Port
10200 published to localhost so host-side scripts can also reach
Wyoming directly; mcspeak inside the stack uses container DNS. Voice
configurable via TTS_PIPER_VOICE — the same env var threads through to
both wyoming-piper's --voice flag and mcspeak's settings.piper_voice,
so they stay in sync.
PiperEngine.__init__ accepts a default_voice override; settings.piper_voice
threads it from the env. list_engines now reports the configured default
rather than the hardcoded en_US-lessac-medium. speak() / generate_audio()
calls with engine=piper and no explicit voice use the configured one.
mcspeak-internal network changed from internal:true to default-bridge.
internal:true was overkill — the goal was per-stack DNS scoping (which
compose provides automatically via the project-prefixed network name),
not internet isolation. The latter broke piper-tts's HuggingFace voice
download with "Name resolution failure" on first start.
.gitignore: add piper-data/ so the downloaded voice models stay out of
the repo.
Duck all PulseAudio sink-inputs (Firefox, Spotify, etc.) before speech,
crossfade the entry tone over the fading media, then restore volumes
after the exit tone. Uses pactl subprocesses for reliable PipeWire
compatibility — pulsectl-asyncio's native protocol writes are silently
dropped by PipeWire's PA compat layer.
New module media_duck.py with MediaDucker class. Unduck is consolidated
into the consumer's finally block to guarantee restoration on all exit
paths (normal, error, cancel, shutdown).
Each project gets a distinct voice from a curated English pool,
assigned via round-robin with gender/accent interleaving for
maximum perceptual contrast between consecutive projects.
- New voice_identity.py: pool filtering, interleaving, persistence
- Round-robin replaces SHA-256 hashing (no collisions until pool
exhaustion at 22 voices)
- Assignments persist to /data/voice-assignments.json across restarts
- speak() and generate_audio() accept optional project= parameter
- MCP roots fallback with 2s timeout for future bidirectional clients
- English-only pool (af_/am_/bf_/bm_/ef_/em_ prefixes)
- af_nicole excluded from auto-assign (whispery), still explicit-ok
- Fix voice blacklist to use full identifiers (am_adam, af_jessica)
CPU-only torch image (~180MB vs 873MB CUDA), PipeWire socket
passthrough for audio playback, SNAC HuggingFace cache volume.
Served at voice.l.supported.systems via caddy-docker-proxy.
