Re: Does your Vizsla whine or bark?
Jasper makes a funny noise when he wants something very badly--it's really just a very short whine, but it's very expressive! If someone is teasing him with food, he eventually gets frustrated and makes what my brother calls his "Wookie" noise. It's usually if someone makes him do (in his mind) too many tricks for what is really not that great of a treat anyway, hmph.
He never used to bark much--once in a while if someone was loitering suspiciously outside our home. Now we live with a mini-dachshund, though, and she is a very high alert kind of dog. Jasper picks up a lot of his cues from her (she is very much the boss of him, despite appearances), so he's become more barky, but not nearly as much as her, thank goodness. She still barks at nothing (to us, to her it's probably the spawn of Satan), but although he barks more often, it's always still "at" something.
Other than that, he's pretty quiet. Lots of grumbles and sighs at night. Never howls, only occasionally roos. Not a very vocal player, and doesn't bark if he's after anything he considers prey. In fact, we had a mouse in the house once, and he was kenneled while the mouse was hiding under the couch. My roommate (who had just gotten home) said Jasper was totally calm in his kennel, then when he let him out, stretched, calmly sauntered out, then dove under the couch to catch the mouse. We thought he would have been going mad, wanting to get that little guy, but he was cool as a cucumber until he really went for it. He did end up killing the mouse with one good shake. He's better than the downstairs neighbors' cats!