A digital audio encoding system from Dolby that was first used in movie theaters in the mid-1970s. It recorded four channels of audio and provided a breakthrough re-introduction of the optical ...

A digital audio encoding system from Dolby that provides four channels. Derived from the Dolby Stereo technology used in movie theaters, Dolby Surround was introduced in the early 1980s for video ...

Audio formats deliver different sound experiences depending on the source material and your setup. Dolby and Digital Theater Sound offer a variety of options in terms of quality. Dolby Atmos and ...