Quiet or not, I suspect the answer is, "No."
Besides the typical difference in center shot-edness (Nice word, eh?) and spine and mass of the arrows being launched, I think it comes down to a difference in limb tip acceleration. I think (Just a guess, here -- I'd like to know what others think.) recurves can accelerate more quickly and "keep up with" lighter arrows better than longbows can. There's no doubt: the target boys love those recurves!
But when it comes to launching heavy arrows - like when punching through pigs - longbows seem more effective.