Notice that most good studios tend to have wood floors. Wood has some give to it, especially soft woods like cork, especially when they are floated in on those click-down planks on top of a pad. Put an area rug on top of that and I think it would be better than just carpet. You essentially gain an extra layer of wood on top of the concrete beyond what just carpet provides.
Plus carpet is gross, in my opinion. You can't REALLY clean it, yet it occupies your room for years, gathering all sorts of crap from everyone who walks on it. No thanks.