5.1 Surround Sound
Definition - What does 5.1 Surround Sound mean?
5.1 surround-sound technology is considered the minimum required for speakers that provide true surround-sound effects. It is considered an industry standard and is supported by all DVDs, video games, and many other types of media.
Techopedia explains 5.1 Surround Sound
Currently, 5.1 surround sound is the preferred layout in home theaters and commercial movie theaters. It is much suited to small- and medium-sized rooms for engaging and realistic true surround-sound effects. For music and digital broadcasting, 5.1 surround sound is considered the standard audio technique.