Update backend.py

backend.py

@@ -191,27 +191,14 @@ def export_to_pdf(result: dict, filename="FinTalk_Report.pdf"):
 
 
 def generate_tts_files(result):
-    try:
-        pipe = pipeline("text-to-speech", model="facebook/fastspeech2-en-ljspeech")
-        print("🎙️ Offline TTS modeli yüklendi (FastSpeech2)")
-    except Exception as e:
-        print("⚠️ TTS modeli yüklenemedi:", e)
-        return
-
-    texts = {
-        "moderator_intro": result["moderator_intro"],
-        "bullish_view": result["bullish_view"],
-        "bearish_view": result["bearish_view"],
-        "moderator_wrap": result["moderator_wrap"]
-    }
-
-    for key, text in texts.items():
+    print("🎙️ Offline TTS (espnet VITS) başlatıldı...")
+    pipe = pipeline("text-to-speech", model="espnet/kan-bayashi_ljspeech_vits")
+    keys = ["moderator_intro","bullish_view","bearish_view","moderator_wrap"]
+    for key in keys:
         try:
             print(f"🔊 {key} ses üretiliyor...")
-            output = pipe(text)
-            audio = output["audio"]
-            filename = f"{key}.wav"
-            sf.write(filename, audio, samplerate=16000)
-            print(f"✅ {filename} oluşturuldu (transformers offline)")
+            out = pipe(result[key])
+            sf.write(f"{key}.wav", out["audio"], 22050)
+            print(f"✅ {key}.wav oluşturuldu (offline VITS)")
         except Exception as e:
             print(f"TTS hatası ({key}):", e)