Benjamin_Boenisch/breakpilot-lehrer
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Switch AudioButton to Piper TTS (Thorsten/Lessac voices)

Browse Source 
AudioButton now tries Piper TTS via /api/vocabulary/tts endpoint
first, falls back to Browser Web Speech API if unavailable.

Backend: New GET /api/vocabulary/tts?text=...&lang=de endpoint.
audio_service.py: Fixed presigned URL flow for MinIO download.

This gives the same high-quality voice as the Investor Agent
in the pitch deck (Thorsten DE / Lessac EN, MIT license).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Benjamin Admin
2026-04-26 23:17:39 +02:00
parent 3cdab5a967
commit 0f0bbc3dc0
3 changed files with 82 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
backend-lehrer/vocabulary/api.py
View File

@@ -161,6 +161,22 @@ async def api_get_syllable_audio(word_id: str, lang: str = "en"):
return FastAPIResponse(content=audio_bytes, media_type="audio/mpeg")
@router.get("/tts")
async def api_tts(text: str = Query("", min_length=1), lang: str = Query("de")):
"""Text-to-Speech endpoint. Returns MP3 audio for any text.
Uses Piper TTS (Thorsten DE / Lessac EN). Cached by text+lang.
"""
from fastapi.responses import Response as FastAPIResponse
from services.audio import get_or_generate_audio
audio_bytes = await get_or_generate_audio(text, language=lang)
if not audio_bytes:
raise HTTPException(status_code=503, detail="TTS Service nicht verfuegbar")
return FastAPIResponse(content=audio_bytes, media_type="audio/mpeg")
# ---------------------------------------------------------------------------
# Learning Unit Creation from Word Selection
# ---------------------------------------------------------------------------