A live broadcast, often known as live transmission, is a term that refers to a variety of media that is broadcast without delay. Broadcast recording (also known as live and live to tape) is a method of sound recording that allows audio to be recorded and played back simultaneously. The feed from microphones is mixed together, while the output from this "mixer" is fed to several audio recorders which are synchronized with each other. It can be used for promotional material, media marketing, and even as a backup in case your internet connection goes down.