first commit

tts/app.py

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+import os, subprocess, tempfile
+from flask import Flask, request, send_file
+
+app = Flask(__name__)
+PIPER_VOICE = os.environ.get("PIPER_VOICE", "/models/piper/fa_IR-model.onnx")
+
+@app.route("/synthesize", methods=["POST"])
+def synthesize():
+    text = request.get_json().get("text", "")
+    p_out = tempfile.NamedTemporaryFile(suffix=".wav", delete=False).name
+    a_out = tempfile.NamedTemporaryFile(suffix=".wav", delete=False).name
+    
+    subprocess.run(["piper", "--model", PIPER_VOICE, "--output_file", p_out], input=text.encode("utf-8"), capture_output=True)
+    subprocess.run(["ffmpeg", "-y", "-i", p_out, "-ar", "8000", "-ac", "1", "-acodec", "pcm_s16le", "-f", "wav", a_out], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+    return send_file(a_out, mimetype="audio/wav")
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=5002)