fixed lang code

app.py

@@ -125,9 +125,7 @@ def get_voice_choices(lang_code):
 
 def text_to_audio(text, lang_code, voice, progress=gr.Progress()):
     try:
-        audio_data = generate_audio(
-            text, lang_code=lang_code, voice=voice, progress=progress
-        )
+        audio_data = generate_audio(text, voice=voice, progress=progress)
         return (24000, audio_data)  # Return tuple of (sample_rate, audio_data)
     except Exception as e:
         print(f"Error generating audio: {e}")