I own my own DJ / Karaoke Company and have DJ'd for over 20 years at bars, weddings and other private events, some as large as 3000 people. I have recorded instructional video's for a cabinet design software company that were used in over 1000 custom cabinet shops through out the US and Canada. I currently drive tour bus and often have to drive and give tour information to riders.
Self Taught.
I currently own a Presonus Audiobox USB recording interface which I have expanded the input capabilities of by using a Behringer Xenyx 802 mixing board. A Presonus M7 High Definition Condenser Microphone and I record with Studio One Software which has 20+ mixing effects built in as well as many various loops and backing tracks.
I have always had careers dealing with the public. Often time having to give extended directions or speaking in public. My time as a DJ is by far the most influential position I have had in regards to voice skills. I was in theater and choir for my entire Junior and Senior High school years as well as many school speaking opportunities.