To cue audio is to determine the desired initial playback point in a piece of recorded music. It is technique used often used radio broadcasting and DJing. DJs typically find the desired start place on a record, tape, CD, or other medium by listening to the recording with headphones and manipulating the turntable or other playback controls. DJs use headphones to cue up the start point; this means that the audience cannot hear the playback until the DJ wants them to. Once the recording is cued up to the desired start point, the DJ can then commence the playback of the recording at the desired moment. The goal of cueing is to avoid "dead air", that is, silence.