Update app.py

app.py

@@ -85,19 +85,19 @@ def text_to_speech(text, speed=1.3):
 def main():
     st.title("Chatbot de Voz a Voz")
     microphones = sr.Microphone.list_microphone_names()
-    
-    if microphones:  
-        selected_microphone_index = 2
+
+    if microphones:
+        selected_microphone_index = 1 if len(microphones) > 1 else 0
         audio_data = sr.Microphone(device_index=selected_microphone_index)
     else:
         st.warning("No se encontraron dispositivos.")
 
-    r = sr.Recognizer() 
-    m = sr.Microphone()
+    r = sr.Recognizer()
+    m = sr.Microphone(device_index=selected_microphone_index)
     with m as source:
-        r.adjust_for_ambient_noise(source) 
+        r.adjust_for_ambient_noise(source)
         st.info("Di algo para comenzar la conversación.")
-        stop_listening = r.listen_in_background(m, callback) 
+        stop_listening = r.listen_in_background(m, callback)
 
 if __name__ == "__main__":
-    main()
+    main()