I've done two major projects in the last year. The first was a short film directed by a close-friend about the difficulties for left-handed individuals growing up in an all-right world. For this, I used my normal speaking voice, a fairly low, smooth cadence that kept things serious, yet clean.
The second project I've done more recently was a promotional video for an in-office gathering during the summer in the style of a 1940's / 50's / 60's PSA. Lots of "tickle your fancy's" and "we have just the thing for you" in an old-style, east coast, higher-pitched voice.
My areas of study included Film Production and Chemistry at the University of Michigan.
I have a super simple recording set-up in my closet consisting of a few blankets, a Zoom H4N, and a low-end condenser mic.
I have access to conversion and editing software if needed including the Adobe Suite for audio editing, or pairing with video, etc.