i think voice and function is correlated. I have an idea that hasn't been proven wrong yet with my experience how Ni, Fe, and Se sounds. I have a less strong idea of how Ne sounds but I'm getting there. Also Te and Fi, only the style of talking for them.
and i think you will find everything about your dual appealing.
actually.. i have a recording of myself i made last night that i didn't like because it sounded infantile. heh. you just can't change the way you are.
and also.. i think voice is not the first thing i notice in my dual. thinking back on it i guess i liked their voices. i dunno?
When someone's voice strikes me they are mostly ENTp. something soothing about their voices to me. Some INFps, but it's really varied. It depends I think I like the way that INFps and ISFps speak more than their voices, a calming, IP way. But the tone is not that great.. but most people's voices that I like are smoother, less gravelly, but more hollow sounding. like a huge round orb thats been struck.