Why is it a stupid explanation that the ship simulates noises for the benefit of the occupants? As I said before, it makes sense to give enemy ships a distinct sound so that gunners and pilots can orient everything in space. Imagine how disconcerting it would be to have to coordinate a defense from both hemispheres of the Falcon, especially without sound to guide you. All you have is the tiny monitor with little arrows for ships, and the windows don't exactly give a panoramic view of space.

I will fully agree that it's unnecessary to actually state this process, but I think it's quite clever as far as retcons go.