SDDS

SDDS stands for Sony Dynamic Digital Sound, which is a cinema sound system developed by Sony. Digital sound information is recorded on both outer edges of the 35mm release print. 7 main channels (5 screen + 2 surround) plus a sub-bass channel are available, usually only 3 of the available 5 screen channels are used as most cinemas do not have the extra speakers installed. The digital track includes 4 fall-back tracks for occasions when the full signal is unrecoverable due to dirt or damage on the film.

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Sony: Sony Corporation (Japanese katakana: ソニー) , is a global consumer electronics corporation based in Tokyo, Japan. It is currently one of the world's largest producers of consumer electronics and is one of the biggest corporations in Japan....

Cinema: Cinema can refer to:...

Sound: :This article is about compression waves. For other meanings, see sound (disambiguation)....