Update app.py

app.py

@@ -207,7 +207,8 @@ def generate_wordcloud(text):
 def generate_audio_kokoro(text, lang, selected_voice):
     """Generate speech using KokoroTTS for supported languages."""
     global kokoro_tts  # Access the preloaded model
-    yield None 
+    if os.path.exists(f"audio_{lang}.wav"):
+        os.remove(f"audio_{lang}.wav")  # Ensure the previous file is deleted (optional) 
     lang_code = SUPPORTED_TTS_LANGUAGES.get(lang, "a")  # Default to English
     #generator = kokoro_tts(text, voice="bm_george", speed=1, split_pattern=r'\n+')
     generator = kokoro_tts(text, voice=selected_voice, speed=1, split_pattern=r'\n+')