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Sony Corporation

SDDS Format

Thursday Jun 17, 1993
U.S.

In 1993, Sony challenged the industry-standard Dolby Digital 5.1 surround sound format with a newer and more advanced proprietary motion picture digital audio format called SDDS (Sony Dynamic Digital Sound). This format employed eight channels (7.1) of audio opposed to just six used in Dolby Digital 5.1 at the time.


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