The main elements of a radio script are the human voice, music, sound effects, and silence. These elements are used together to create sound landscapes or images that allow radio listeners to imagine the scenes, emotions, and meanings being conveyed without visuals. Specifically, the human voice is used to transmit messages and provoke reactions, music generates atmosphere and emotion, sound effects help describe settings, and silence provides emphasis, tension, and emotion. When combined strategically, these elements make radio stories come to life in the listener's mind.