I saw an interesting article about researchers who have developed software that can distinguish the types of dog barks. The idea is to get the computer to tell you if the dog is happy or sad, wants food, needs to go out, etc.
News article about dog barks
My first reaction was to think that dogs really aren't that hard to figure out. They are pretty much driven by a few basic needs and so this all seems rather academic.
Yesterday, I was watching the NFC and AFC championship games and this Bud Light commercial came on that summed up my thinking about understanding dog barks in hilarious fashion.
Update! I found a vid on youtube. Enjoy!