There's quite a bit of crossover of writing scripts for theatrical plays and for the radio. The main difference is that most of your stage direction is actually sound direction. For example, instead of the hero swiftly crossing the stage to come face-to-face with the villain, the sounds of his footsteps hurrying along and coming to an abrupt stop can get the same idea across to the listener. It's acting with sound alone.
Jack Foley -- brilliant man! -- was the superstar soundman behind such an art form when moving pictures were making the transition from silent films to talkies using skills he originally honed on the radio. I prefer my beloved radio to picture shows, of course, but I do remember seeing Show Boat and being quite impressed by his work. Little wonder such "sound actors" are still referred to as "Foley artists"!
Alastor getting to geek out...
Jack Foley -- brilliant man! -- was the superstar soundman behind such an art form when moving pictures were making the transition from silent films to talkies using skills he originally honed on the radio. I prefer my beloved radio to picture shows, of course, but I do remember seeing Show Boat and being quite impressed by his work. Little wonder such "sound actors" are still referred to as "Foley artists"!