I too detest the sound of my own voice.
Weird thing is I mimic people – I’m good at accents, always have been, taking off TV characters, comedians etc. My mates always take the p**s and comment how when we go off somewhere I speak to the locals with a bit of a twang, mimicking them. So, that’s odd, and annoying, and embarrassing enough.
BUT, I’m from Herefordshire, been around farmers all my life (grandparents farmed, as do most of my friends), now live on a farm. So my default setting is yokel. If I hear a recording of myself talking amongst my farming mates, it’s near incomprehensible.
In my job I speak to loads of people face to face and on the phone, from a wide range of places and backgrounds every day – and think my accent is fairly neutral. But alas, it seems I’m a carrot cruncher for life. What people must think of some farmer boy giving them the ins and outs of interstitial condensation I do not know.
edit:
I used to hate public speaking, to the point I avoided/pretended/hid/bunked off so as not to stand up and talk in front of the class in school.
5 years later however I was chairman of our local young farmers club and at the annual dinner held an audience of near to 100 for about 20 minutes, with minimal notes, and no preparation. I will say, despite what people (including me) thinks about young farmers and some of the negative aspects, it is BRILLIANT for boosting your confidence, public speaking, debating, and general life skills. I categorically would not have the career I do now without it.