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| | Top 20 Encyclopedia |
 | | SDDS sound runs on the outside of 35 mm film, between the perforations and the edges, on both edges of the film. |
 | | In contrast, DTS and Dolby Digital soundtracks both are passed through to standard analog Dolby cinema sound processors which are also used for analog optical sound, so equalization of the sound is only analog. |
 | | The digital compression of SDDS is better than DTS, but inferior to Dolby Digital. |
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