AC-3 (Dolby Digital)

This digital surround-sound format for home audio is called Dolby Digital in theaters. It is a 5.1 format, with six separate audio tracks. AC-3 has been chosen as the official sound format for digital TV, and is already encoded on many DVDs and Laserdiscs.

See also: 5.1
See also: Dolby Pro Logic
See also: DTS