I have starred on my friend's radio show a few times, which is on WNTH 88.1 FM, where we talked about different topics for about an hour or so. After the show I was confronted by the managers of the radio station. They all agreed that I should get a radio show next season because I had the best voice they had ever had at the station, and that I was very talented and relaxed when hosting the show.
There was another time at my high school where I spoke in front of everyone but once I began to speak the whole room went quiet as everyone turned their full attention toward me and my "radio voice" as they liked to call it. After my speech I got the largest applause of the day as I handed the mike over to an older gentleman who was running the presentation who then commented, "Man, he has a real speaking voice!" For the rest of that year I was confronted in the hallways and was asked to say peoples names to them just because they thought my voice was so interesting.
I have taken many media workshop courses that teach proper speaking, and some that included being able to host my own personal radio show.
I have also taken an acting course where I was taught how to speak in different tones.
Internal Speaker build-ins
Through my experience at the radio station, I have learned how to speak in a very relaxing tone without stuttering or stoping, and also how to maintain a nice, deep voice for the whole length of a project.