Short for voice-over. Also seen as AVO (announcer voice-over). Its the act of providing a voice to a media project, where the voice is usually mixed over the top of music and SFX. Voice-over was the term originally used to describe an announcers voice on a television spot, referring to the process as voice over picture. The more accurate term now is voice acting, which is the art of using the voice to bring life to written words.