Sound systems

Year	Name	Number of films
2002	12-Track Digital Sound	40
1953	3 Channel Stereo	51
1953	4-Track Stereo (CinemaScope)	586
1955	6-Track Stereo (Todd-AO and compatibles)	89
1955	70 mm 6-Track	527
1934	Afifa Ton-Kopie	1
1950	AGA Sound System	7
1909	Animatophone	3
1928	Aurofone	1
1943	B.A.F. Sound System	2
1907	Biophone	2
1938	Blue Seal Noiseless Recording	1
1929	Bristolphone	2
2001	Broadway Surround	1
1909	Cameraphone	1
1921	Case	1
1990	CDS	11
1974	Chace Surround	8
1905	Chronophone	106
1910	Chronomegaphone	1
1990	Cinema Digital Sound	5
1907	Cinematophone	53
1904	Cineophone	2
1909	Cinephone Lubin	57
1952	Cinerama 7-Track	13
1911	Cinephonograph	1
1949	Cinesound	10
1908	Cinophone	2
1923	De Forest Phonofilm	213
2002	Digitrac Digital Audio System	12
1975	Dolby	12497
2012	Dolby Atmos	?
1993	Dolby Digital	19652
1999	Dolby Digital EX	288
1985	Dolby SR (Surround)	5865
2010	Dolby Surround 7.1	50
1993	DTS	3735
1996	DTS 70 mm	28
2001	DTS-8	2
1999	DTS-ES	93
1994	DTS-Stereo	137
1996	DX Stereo	3
1940	Fantasound	1
1929	Filmtone	2
1998	Full Range Recording System	5
1920	Gaumontphone	1
1898	Hollmann–Eaves	1
1973	IMAX 6-Track	25
1933	International Recording Engineers System	2
1992	Iwerks Digital Audio	5
1894	Kinetophone (Dickson)	7
1889	Kinetophone (Edison)	1
1958	Kinopanorama 9-Track	6
1913	Kinoplasticon	12
1956	Klangfilm Magnetocord	3
1954	Klangfilm-Stereocord	3
1990	LC-Concept Digital Sound	22
1969	Li-Westrex System	1
1938	Magnaphone Western Electric	3
1962	Magnetocord	1
1988	Matrix Surround	24
1929	Mono	137936
1925	Movietone	20
1938	Optiphone	5
1964	Ortiphone	1
1907	Oskar Messter	1
1949	Perspecta Stereo	58
1933	Phillips Sound	3
1900	Phono-Bio-Taleaux	1
1900	Phono-Cinema-Theatre	7
1921	Phono-Kinema	11
1922	Phonofilm	248
1921	Photokinema	8
1925	Photophone (RCA)	3
1914	Polyscope	2
1936	Pulvári System	5
1970	Quadrophonic	3
1975	Quintaphonic	1
1987	Sony Dynamic Digital Sound (SDDS)	2005
1977	Sensurround	13
1992	Servotron Stereo	5
1896	Silent	95017
1985	Sonics	4
1996	Sonics-DDP	47
1994	Sonix	13
1928	Sonora-Bristolphone	1
1997	Sound 360°	2
1992	Sound Trax Surround Stereo	4
1995	Soundelux	1
1965	Spectra-Stereo	2
1972	Stereo	45374
1978	Super Space Sound	1
1929	Synchrotone	2
1939	Synthetic	4
1932	Systemi A. Shorin	2
1940	Système Cottet	3
1933	Tagephone	1
2005	TMH Labs 10.2 Channel Sound	1
1928	Tobis (Tonbild Syndicat)	80
1922	Tri-Ergon Sound System 68 mm	2
1982	Ultra Stereo	1007
1938	Variray Blue Seal Recording	3
1935	Visatone	3
1980	Vistasonic	2
1925	Vitagraph	3
1926	Vitaphone	356
1911	Vivaphone	1
1921	Western Electric	20
1925	Westrex (Fox & Western Electric)	5
1938	Wicmar and Blue Seal Noiseless Recording	1