Clips labelled simply 5.1 circulate online as short utility sounds rather than as clips from a film or show. The label refers to the standard six channel surround format used in home cinema, games and streaming, with five main speakers and one low frequency channel. Short test versions are shared on soundboards for quick speaker checks and are also dropped into edits as a joke about overly serious audio setups, audiophile culture and home theater bragging, which keeps the sound in regular use despite its plain name.