Dolby 5.1 or DTS 5.1?

[AsPiRiN]

I have connected the line out of my soundcard with the line in of my stereo that has sourround speakers.Even if i dont know whether that should help in order to listen the surround sound of a movie or a downmixed mp3(or is it useless???), i usually make a 1 cd rip with abr 112 mp3(lame) with BeSweet.
Now the question is: i recently ripped a movie with dolby 5.1 and DTS 5.1. Is there a difference of downmixing the DTS track instead of the Dolby one??Should i get a better sound???
:confused:

[Doom9]

dts can't be downmixed

[DarkAvenger]

Well, at least it shouldn't be...

[Taric25]

DarkAvenger, are you saying that there is actually a way to downmix DTS?

[DarkAvenger]

I guess it should be possible using PowerDVD4 and Totalrecorder, but it is a bad idea, as DTS in contrast to DD is not designed to be mixed down, so the result could have unwanted effects.

So forget this idea fast.

[user]

As far as I know (have not dealed much with dts up to now),
dts is similar to Dolby D, regarding functionality:

in AC3 /DD 5.1 usually, you have 5 or six separate channels.

If you have a decoder, you can extract 5 waves. Each one has sound information on its own.

I thought, that dts 5.1 has got infos for separate 5 to 6 channels, too.

(but I imagine only a basic model...., like Greek philosophers ages ago knew that there could be "atoms", smallest particels, which build up materials, but today chemists have much more detailed atomic models, remember: still models !)

Even if dts uses a smart algorythm, eg. if in one channel is at a time same/similar info like in another channel and this info is stored only once, but with additional info that this sound should be extracted to this and that channel, then you can decode dts to separate waves.
Later these waves could be downmixed theoretically.
You know: channel1 is left front, 2 is right front, center, rear left, rear right.

For this aim a dts decoding algorythm has to be published, so that it could be used by programmers.
If dts decoder/algorythms are copyrighted and not freeware, then that will be a reason, why it is impossible ?

[ChristianHJW]

Why downmix ? We should transcode the DTS to Vorbis .... look at the wish list thread DA :D ...

[DarkAvenger]

The problem is, you need to apply a 90° filter to rears of DTS, whereas correctly mastered AC3s have this already done, just to name one of the problems. So donwmixing DTS isn't trivial.