Singing is the act of producing musical sounds with the voice, and augments regular speech by the use of both tonality and rhythm. wikipedia.org

Voice acting is the art of providing voices for animated characters (including those in feature films, television programs, animated short films, and video games) and radio and audio dramas and comedy, as well as doing voice-overs in radio and television commercials, audio dramas, dubbed foreign

Voice-over is a production technique where a voice, that is not part of the narrative (non-diegetic), is used in a radio, television production, filmmaking or other medium.

Audio editing is the process of taking recorded sound and changing it directly on the recording medium (analog) or in RAM (digital). wikipedia.org

Radio broadcasting is a one-way wireless transmission over radio waves intended to reach a wide audience. wikipedia.org

"Narration is the act of telling a story, usually in some kind of chronological order."

Adobe Audition (formerly Cool Edit Pro) is a digital audio workstation from Adobe Systems featuring both a multitrack, non-destructive mix/edit environment and a destructive-approach waveform editing view. wikipedia.org