jeremy
266ea11447
FRIDAY Voice (speaches GPU STT/TTS + hermes agent + push-to-talk console) on .150 Docker Desktop, fronted by coach.hobbs.farm. Also captures the VoiceCoach compose/agent trees and deploy notes it replaced, which had never been committed. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
73 lines
1.8 KiB
Python
73 lines
1.8 KiB
Python
"""
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Piper TTS HTTP service.
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Self-hosted text-to-speech, internal network only.
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"""
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import io
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import logging
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import os
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import wave
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from contextlib import asynccontextmanager
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from fastapi import FastAPI, HTTPException
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from fastapi.responses import Response
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from pydantic import BaseModel
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import piper
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logging.basicConfig(level=logging.INFO)
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logger = logging.getLogger(__name__)
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MODEL_PATH = os.getenv("PIPER_MODEL", "/app/models/en_US-lessac-medium.onnx")
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voice = None
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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global voice
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logger.info(f"Loading Piper model: {MODEL_PATH}")
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voice = piper.PiperVoice.load(MODEL_PATH)
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logger.info("Piper TTS ready.")
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yield
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logger.info("Shutting down.")
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app = FastAPI(title="Piper TTS Service", lifespan=lifespan)
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class TTSRequest(BaseModel):
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text: str
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speaker_id: int = None
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length_scale: float = 1.0
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sentence_silence: float = 0.2
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@app.get("/health")
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async def health():
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if voice is None:
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raise HTTPException(status_code=503, detail="Model not loaded")
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return {"status": "ok", "model": os.path.basename(MODEL_PATH)}
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@app.post("/synthesize")
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async def synthesize(req: TTSRequest):
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if voice is None:
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raise HTTPException(status_code=503, detail="Model not loaded")
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if not req.text.strip():
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raise HTTPException(status_code=400, detail="Empty text")
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buf = io.BytesIO()
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with wave.open(buf, "wb") as wf:
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synth_kwargs = {
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"length_scale": req.length_scale,
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"sentence_silence": req.sentence_silence,
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}
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if req.speaker_id is not None:
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synth_kwargs["speaker_id"] = req.speaker_id
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voice.synthesize(req.text, wf, **synth_kwargs)
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return Response(
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content=buf.getvalue(),
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media_type="audio/wav",
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headers={"Content-Disposition": "inline; filename=speech.wav"},
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)
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