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414dc55 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | """TTS provider abstraction.
``SupertonicProvider`` gives each suspect a distinct on-device voice. ``NullProvider``
(silent) is the safe fallback, so the game stays fully playable as text if the voice
model is unavailable.
"""
from __future__ import annotations
from pathlib import Path
from typing import Protocol
from ..config import Settings, TTSEngine
from ..schemas.suspect import VoiceAssignment
class TTSProvider(Protocol):
is_local: bool
available: bool
def synth_to_file(self, text: str, voice: VoiceAssignment | None, out_path: Path) -> Path | None:
"""Write a WAV for ``text`` and return its path, or None if unavailable."""
...
class NullProvider:
is_local = True
available = False
def synth_to_file(self, text: str, voice: VoiceAssignment | None, out_path: Path) -> None:
return None
def make_tts_provider(settings: Settings) -> TTSProvider:
if settings.tts_engine is TTSEngine.SUPERTONIC:
try:
from .supertonic_provider import SupertonicProvider
provider = SupertonicProvider()
return provider if provider.available else NullProvider()
except Exception:
return NullProvider()
return NullProvider()
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