Re: Surround sound via optical spdif out

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On Fri, 2006-10-13 at 22:52 -0400, Nathan A. Smith wrote:
> On Fri, 2006-10-13 at 22:39 -0400, Lee Revell wrote:
> > I think that's a DTS/DD file.  Try this one:
> > 
> > http://downloads.lightspeed.cx/lynne/bjorn_lynne-secret_world_(surround_version).ac3
> First off....
> 
> Nice song -- I might have to look for more of him/her.
> 
> Which points out that the file actually worked (and it does sound really
> nice).
> 
> So I must ask -- DD/DTS/AC3 are all forms of encoding surround sound.
> Is it typical that only AC3 works on our systems?  Is AC3 the DVD
> standard (I didn't think so...)?  

I'm not really a home theater expert, but the DVD standard is AC3 which
is also known as DD.  DTS is an older, less common format.  So you
should be able to play DVDs in surround.

I'm not sure why the other file didn't work.  It looks like mplayer
tried and failed to guess the file type?

I *think* that if AC3 passthrough works then DTS must work - it's just a
matter of setting a non-audio bit on the stream.

Lee


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