src/blu/tts.py

from typing import Optional
import os

def synthesize(text: str, out_path: str = "output.wav", voice: Optional[str] = None) -> str:
    """Simple TTS using Coqui TTS CLI if available; else fallback to pyttsx3."""
    voice = voice or "tts_models/en/ljspeech/tacotron2-DDC"

    try:
        import subprocess
        cmd = ["tts", "--text", text, "--model_name", voice, "--out_path", out_path]
        subprocess.run(cmd, check=True)
        return out_path
    except Exception:

        try:
            import pyttsx3
            engine = pyttsx3.init()
            engine.save_to_file(text, out_path)
            engine.runAndWait()
            return out_path
        except Exception as e:
            return f"TTS failed: {e}"