fix bug

app.py

@@ -27,7 +27,7 @@ if st.button("Generate"):
         # audio = text_to_audio(user_input)
         
         # Text to speech to a file
-        tts.tts_to_file(text="Hello world!", file_path="output.wav")
+        tts.tts_to_file(text=user_input, file_path="output.wav")
 
         # Display the audio
         st.audio("output.wav", format="audio/wav")
@@ -36,7 +36,7 @@ if st.button("Generate"):
         st.markdown("### Download the audio")
         with open("output.wav", "rb") as audio_file:
             audio_bytes = audio_file.read()
-            
+
         st.download_button(
             label="Click to download",
             data=audio_bytes,