What is the difference between a high pitch voice and a tenor timbre?

Can you permanently change the resonance/timbre of your voice by using surgery and fine tune it to your desire

• it's clear that first impressions are very important, and i don't want to take any chances. if i don't get a job/date, it should be because i messed up personally, not because I have a disadvantage...I'm pretty good looking, but my voice...well is annoying to listen to. it's deep, but its timbre is irritating. there's surgery for pretty much anything nowadays (sex changes...), so I surmised that a voice timbre change wouldn't be too difficult. but then i went on websites and discovered that timbre is exceedingly complex...created by sinuses, nose, mouth, in addition to the vocal cords. is there any way to predict what the tone of voice will be after some sort of comple x surgery so that your voice becomes resonant, attractive, and deep? this is mostly for everyday speaking ability in business and conversation, not singing potential, altough that would be nice thanks a lot!=)

• Answer:

  I suppose not, because our larynx (voice box) is not only for speech but also involved in the cough reflex... and yes, our nose, sinuses and mouth have to do with timbre. An operation of that sort puts breathing at risk.