I've been working at a local community radio station (88.6 Plenty Valley FM) for over twenty years as an on-air program presenter and producer, and also do voice-overs for many of the station's carts and promos.
These range from Community Service Announcements and station ID stings, to sponsor carts.
I was also the Production Manager at another local station (96.5 Inner FM) for over a decade); I was on their news and weather sponsor announcements, many sponsor carts and CSA's, while my voice featured in ID's and segment intros on many of their programs. I also presented programs there.
Additionally, I've also appeared as a semi-regular on a collectibles program on Melbourne commercial radio station 3AW, presented a fortnightly program on streaming site DeluxeUK, and produced carts for Australia-wide use featuring professional voice talent.
Got a Certificate III in Media a couple of years back.
I produce all of the carts upon which I appear (necessity rather than ego - I'm usually the only in the building at the time...), in Cool Edit Pro / Adobe Audition.
I also make a great cup of tea!