Cinerama Theaters, in select major cities, featured seven
channels of audio synced with several projectors that created a
panoramic 146 degree wide screen image.
20th Century Fox unveiled the The Robe in Cinemascope, an
anamorphic 2.35:1 aspect ratio
film that included surround sound audio.
Music only quadraphonic four-channel audio added a pair of rear
speakers to the home stereo arrangement.
The movie A Star is Born introduced Dolby Stereo Surround, a
more commercially viable multi-channel audio system in
neighborhood theaters. The Dolby debuts of Star Wars and Close
Encounters of a Third Kind soon followed.
The HiFi VCR escorted Dolby Surround into consumers homes.
Dolby Surround evolved into Dolby Pro Logic.
Dolby Digital and DTS launched digital surround sound in
neighborhood movie theaters.
The DVD is released and includes the Dolby Digital and DTS
digital surround sound formats.
A revised LaserDisc adds DTS and Dolby Digital audio.
The High Definition BluRay disc launches with the lossless Dolby
Digital HD Audio and DTS HD Master Audio formats.
Dolby Atmos and DTS-X introduces a more immersive surround sound
experience via above channels and speakers.