Yes it sounds bad and sounds bad (both literal and in reality.)
If this was my machine I'd first check the warranty to see if the maker will take it in.
If not I'd pull the power first and do the cleaning we all do on old laptops that were never cleaned. I'd be inside the machine looking for anything loose like a staple or other foreign objects since these could move about and cause an early laptop death.
im using lenovo r61 ,from a few days this starnge thing is happening,,the laptop speakers make shriek noise that literally pierces my ear,,but when i tilt my laptop a little,it goes off,,