Files
voicecoach/piper-service/main.py
T
jeremy f62772663d feat: VoiceCoach v2 - OpenClaw gateway + Speaches STT/TTS
- pipeline.py: completely rewritten to use Speaches STT/TTS and OpenClaw LLM
- main.py: v2 with OPENCLAW_TOKEN support
- requirements.txt: slimmed (removed anthropic, faster-whisper direct deps)
- Dockerfile: slimmer build (no model pre-download)
- whisper_stt.py, piper_tts.py: removed (replaced by Speaches API)
- docker-compose.yml: v2 with speaches + openclaw services, piper-tts removed
- openclaw-agent/system_prompt.md: new directory with agent system prompt
2026-04-01 08:04:59 -05:00

73 lines
1.8 KiB
Python
Executable File

"""
Piper TTS HTTP service.
Self-hosted text-to-speech, internal network only.
"""
import io
import logging
import os
import wave
from contextlib import asynccontextmanager
from fastapi import FastAPI, HTTPException
from fastapi.responses import Response
from pydantic import BaseModel
import piper
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
MODEL_PATH = os.getenv("PIPER_MODEL", "/app/models/en_US-lessac-medium.onnx")
voice = None
@asynccontextmanager
async def lifespan(app: FastAPI):
global voice
logger.info(f"Loading Piper model: {MODEL_PATH}")
voice = piper.PiperVoice.load(MODEL_PATH)
logger.info("Piper TTS ready.")
yield
logger.info("Shutting down.")
app = FastAPI(title="Piper TTS Service", lifespan=lifespan)
class TTSRequest(BaseModel):
text: str
speaker_id: int = None
length_scale: float = 1.0
sentence_silence: float = 0.2
@app.get("/health")
async def health():
if voice is None:
raise HTTPException(status_code=503, detail="Model not loaded")
return {"status": "ok", "model": os.path.basename(MODEL_PATH)}
@app.post("/synthesize")
async def synthesize(req: TTSRequest):
if voice is None:
raise HTTPException(status_code=503, detail="Model not loaded")
if not req.text.strip():
raise HTTPException(status_code=400, detail="Empty text")
buf = io.BytesIO()
with wave.open(buf, "wb") as wf:
synth_kwargs = {
"length_scale": req.length_scale,
"sentence_silence": req.sentence_silence,
}
if req.speaker_id is not None:
synth_kwargs["speaker_id"] = req.speaker_id
voice.synthesize(req.text, wf, **synth_kwargs)
return Response(
content=buf.getvalue(),
media_type="audio/wav",
headers={"Content-Disposition": "inline; filename=speech.wav"},
)