Update app.py

app.py

@@ -5,8 +5,10 @@ from io import BytesIO
 x = st.slider('Select a value')
 st.write(x, 'squared is', x * x)
 
-sound_file = BytesIO()
-tts = gTTS('Add text-to-speech to your app', lang='en')
-tts.write_to_fp(sound_file)
-
-st.audio(sound_file)
+prompt = st.chat_input("Say something")
+if prompt:
+    sound_file = BytesIO()
+    tts = gTTS('Add text-to-speech to your app', lang='en')
+    tts.write_to_fp(sound_file)
+    
+    st.audio(sound_file)