I have been the on-site voice-over and production guy at an L.A. radio station, was the segment announcer on Paramount TV's "Real TV with Ahmad Rashad", was the voice - along with Smokey Robinson - of the Emmy-winning "Motown 25", have voiced and produced dozens of record-industry spots for Motown and other major labels as well as nightclub and concert spots (structurally, all the same). In my production job, was called upon to voice and produce all manner of spots requiring a range of v/o approaches including the friendly guy on furniture store spots, the somewhat more intense voice of certain auto dealer spots, Rock 'n roll club spots, station imaging and promo work, etc.
All on-the-job, mostly in 40+ years of radio, mostly in Los Angeles. My first job was at age 13. It was a radio acting job. I cut my first radio spot in early 1968. There's been much media production work over the years.
I currently use an AKG C414 EB microphone and the Adobe Audition 2.0 production program at which I am quite adept.
I was on the air at radio stations in Cleveland, Houston, Chicago, San Francisco and, for many decades, Los Angeles. I have been a major market (San Francisco and Los Angeles) program director three times and have won national awards at it as well as national awards as air talent. At Westwood One they used to call me "One-Take Johnson", which was not totally accurate. I did usually manage to nail it in a few takes; sometimes one. I've hosted numerous nationally-syndicated music radio shows.