Absolutely no difference in sound at all.  Wood for violins ar cut from tress like pie wedges, quarter sawn. This give the straightest grain and the growth rings end up being perpendicular giving the wood greater strength and more consistency throughout. When making a back or top you need a piece of wood about 5 to 6 inches wide.  If you take that piece and cut it down the middle and open it up to glue it together it is called book matching.  This way the pattern of the wood lines up for a more beautiful look.  The thing it, in order to get this piece of wood since you can't use the core nor the bark wood, you need a tree with a diameter ofabout 24 inches or more. To find a single piece with a nice flame pattern and 9 inches wide you will need a tree at least 36 inches in diameter.  You can get a lot more backs out of a tree with book matching than with solid backs.  Yes there are a lot of 1 piece backs and they are usually cheaper but they don't have the flaming and are not fully quarter sawn. To get a piece of highly flamed maple large enough and quarter sawn for a violin back you are talking much more money.

Actually birds eye maple is easier to find than tiger maple.  The birds eye backs are usually made from planks and not wedges but the sound is to my belief not as good.