Chats making noise??

For context, I turned the voice on then off again and I always keep it turned off.

In my most recent chat, after the bot responded, I heard the sound of a cat meowing and then the sound of a door closing, purely because in the conversation in this specific response, there was a cat and then the action of the bot closing a door. Are the sounds supposed to happen or is there a way to turn it off? It just kinda caught me by surprise to be honest