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#67514 - 05/02/2002 22:38 Compressed surround sound
muzza Pooh-Bah Registered: 21/07/1999 Posts: 1765 Loc: Brisbane, Queensland, Australi...	With the DVD-A format, what plans are afoot for compressed surround sound formats? _________________________ -- Murray I What part of 'no' don't you understand? Is it the 'N', or the 'Zero'?
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#67515 - 05/02/2002 22:41 Re: Compressed surround sound [Re: muzza]
wfaulk carpal tunnel Registered: 25/12/2000 Posts: 16706 Loc: Raleigh, NC US	Dolby Digital (AC-3) and DTS are already compressed. Or do you mean something else? Oh -- and Ogg Vorbis can deal with more than two channels (according to the spec; I don't think an implementation with >2 channels exists, though). Edited by wfaulk (05/02/2002 22:43) _________________________ Bitt Faulk
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#67516 - 05/02/2002 23:32 Re: Compressed surround sound [Re: wfaulk]
muzza Pooh-Bah Registered: 21/07/1999 Posts: 1765 Loc: Brisbane, Queensland, Australi...	I don't know. I was sort of guessing the amount of compression possible with mp3s. Are these formats lossless compression? _________________________ -- Murray I What part of 'no' don't you understand? Is it the 'N', or the 'Zero'?
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#67517 - 06/02/2002 12:01 Re: Compressed surround sound [Re: muzza]
wfaulk carpal tunnel Registered: 25/12/2000 Posts: 16706 Loc: Raleigh, NC US	Nope. They're quite lossy. I don't know if they have a variety of bitrates like mp3s do, but they use the same general ideas of psychoacoustics. Actually, ogg vorbis is very similar to mp3 -- I forgot I mentioned that one. AC3 and DTS are the audio formats used both on DVDs, some LaserDiscs, and in the actual movie theater. Edited by wfaulk (06/02/2002 12:05) _________________________ Bitt Faulk
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