Thanks everyone for your advice. Well I'm glad I finally talked to them today. I've felt very vulnerable for awhile with different managers and the most recent incident just sort of pushed me over the edge.

Yes of course HR is always looking out for the company and looking out for not being sued. I had my written complain and a copy of the Americans with Disabilities act underlined with the parts that were relevant to me.... but I kind of wussed out. Too scared to make waves. I emphasized how the whole "tone of voice" comment was just really offensive and she said that she may have been referring to things other than my speech--- mannerisms, emails etc. Which is isn't true! I am very diplomatic & professional in my emails and mannerisms. So what could I say to that...?? I just explained to her how things go where its like 6 team members and this woman all giving me different art direction and changes at the last possible moment and that is very stressful.

We had a really nice talk and I told her all that had been happening and she took notes- so I'm assuming it was documented? Well I hope so.

Anyways- I'm going to document everything from now on myself in case this ever happens again.

I think these HR people must have a list of responses and reccomendations for dealing with workplace confict to try and "diffuse the situation".. I was on to her! She recommended that I meet again with this woman and talk it out (oh how fun for me!) and she also offered to mediate and speak with her herself privately. So that was good-- but I just don't want her to really hate frickin' hate my guts and never give me a promotion ever.. and I feel like that could happen. So I didn't want to screw myself.

Glad to hear of everyones different points of view and experiences.
It really is hard to be someone with a speech disability sometimes! People just take talking and eating for granted and they can't even fathom what it would be like to have these things compromised.

Thanks for listening!!!!!!!!!!!