If a guy's voice is extremely grating or high-pitched, it would certainly dampen my initial attraction to him (and maybe even prevent me from developing any attraction at all beyond friendship). I don't remember any of the guys I ever dated having what I'd call an annoying voice.
On the other hand, if a guy has a voice that I find sexy, his voice can be the most powerful aphrodisiac of all
. I have actually developed crushes on guys because of their voices--of all the guys I've had crushes on in my life, I've forgotten many but can still recall each crush who had an exceptionally sexy voice. I could be sitting in a classroom full of other students, just listening to the sound of my crush's voice discussing, well, anything at all and become aroused! Of course, my crushes would also always possess other attributes (both physical attributes and character attributes) that I found immensely appealing, but it was always the timber and pitch of their voices (and sometimes the cadence of an accent) that sunk me into hopeless, weak-kneed infatuation.
Cute and confident guys are a dime a dozen, but a cute, confident guy with a sexy, pleasing voice is unforgettable (especially if he also exhibits integrity).
I really love my husband's voice. It definitely played into my attraction to him.