This evolved into Dolby Pro Logic, which could intelligently extract 5.1 surround sound from a regular stereo soundtrack. 1992's "Batman Returns" was the first film released in Dolby Digital format, ...

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 ...

Dolby Atmos surround sound technology has made its way from post-production ... soundtracks in a virtual (and therefore more accessible) experience. Apple's Vision Pro AR headset – which went on sale ...