TV's Frink said:

SilverWook said:

If Yoda could say "moo cow", that might fit the lip movement better.

Perhaps an anguished cry of "moo!" off camera before we actually see it?

I didn't notice a lip sync issue, I'll have to look at it again. Combining sounds to make a word is always dicey, so I try not to do it unless necessary.

And believe it or not, I always planned to put a moo or two in, but forgot to do it when working on the clip. But it hadn't occurred to me that I could do it off-camera when it first gets shot.

There's a 'Chorus' audio effect in certain versions of Vegas that may help.