Update app.py

app.py

@@ -192,13 +192,17 @@ if prompt := st.chat_input("How can I help you today?"):
         st.session_state.audio = False
 
     with st.sidebar:
-        if st.radio('Reference') or st.session_state.reference:
+        choice = st.radio("References and TTS",
+            ["Reference", "Text-to-Speech"])
+        
+        if choice == 'Reference':
             st.session_state.reference = True
-            generate_pdf()
-        if st.radio(':speaker:') or st.session_state.audio:
+            generate_pdf()       
+
+        if choice == ':speaker:':
             generate_audio()
             st.session_state.audio = True
-
+            
     st.session_state.messages.append({"role": "assistant", "content": full_response})