sound in vlc

Daniel Thell thelld2 at cti.ecp.fr
Wed May 9 18:40:57 CEST 2001


> > However, I noticed that some DVDs offer the same
> > sound track (i.e. the same language) in two different
> > encodings, Dolby 5.1 and Dolby Surround. The
> > actual output, in particular of speech, is quite different,
> > the former being much better balanced than the latter as
> > far as small PC speakers are concernded.
>
> I'll try. I'm piping everything through said dolby amp anyways, so by
> choosing the right soundtrack/amp setting combination I might get
> better sound.

As far as I know, each channel (I gess 4 channels for the 4 corner speakers)
of the Dolby Surround is less compressed than the Dolby 5.1. However, the
Dolby 5.1 has 5 chanel for positionning purposes (1 for the front sound
speaker (many voices) and 1 for each corner speaker) and 1 channel for bass
frequencies (under ~100 Hz). The Dolby Digital (or Dolby 5.1) channels are
very compressed compared to PCM audio (a normal audio CD). In the same
spirit, a DTS sound is a 6 channel norm (5+1), with a low compression rate
(more place needed but better sound).
For small PC speakers, I don't know whether DTS or Dolby 5.1 will make a
huge difference.
I can remember that vlc doesn't handle DTS for now.


Pingouin





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