Interesting topic! Since I went deaf, I've been told that my voice had really changed a lot in terms of pitch and inflection, and that I'm actually pretty hard to understand because I mumble and slur my words. Though I am basically completely voice off, when I do talk, I'm told I'm usually very loud, likely because I obviously can't hear my volume. I'm also told that I've developed a lisp, which is weird because I never had one before going deaf.
Like I said, because I am not comfortable not knowing how I sound or what I'm saying, I'm mostly voice off. I know it's odd, but it works for me despite the obvious challenges it creates.
-Lauren