[mythtv-users] surround 5.1 sound
Ma Begaj
derliebegott at gmail.com
Sun Nov 4 19:42:46 UTC 2007
I found a ticket which might help. I did not try it out (I will
tomorrow), but it sounds promising.
http://svn.mythtv.org/trac/ticket/1104
M.
2007/11/4, Ismo Tanskanen <ismot at telemail.fi>:
> > 2007/11/4, Ismo Tanskanen <ismot>:
> > > On 11/03/2007 10:28 AM, Ismo Tanskanen wrote:
> > > > Is mythfrontend capable to send 5.1 sound out from soundcard's analog
> > > > connectors?
> > >
> > > Nope. AC-3 and DTS passthrough are the only ways to get digital
> > > "surround" sound. (I.e. your receiver may actually be able to detect
> > > Pro-Logic encoding (or similar) in the 2-channel stereo, depending on
> > > many issues.) See, also, ticket #1104.
> > >
> > > > I'm planning to buy cheap 5.1 speaker set to bedroom. They
> > > > don't use digital out, but connect directly to soundcard, which
> has 5.1
> > > > speaker outputs. SC is soundmax integrated (asus m2npv-mx)
> > > >
> > > > Now, I only get sound from front speakers, even if there is 5.1
> track. I
> > > > use internal player to play dvd. TV channels also transmit surround
> > > > sound often.
> > > >
> > > > In living room I have dolby amplifier and I use AC3 passthrough,
> what is
> > > > working great. But I don't want buy separate amplifier to bedroom, I
> > > > think some kind of computer 5.1 surround set (creative, logitech
> etc) is
> > > > working fine for that purpose.
> > >
> > > You'll need to fake it with a ttable-based channel copy.
> > >
> > > Mike
> > >
> > > Can you explain this a bit more.. please.
> >
> > That is what wrote in my first mail. You need something like this:
> >
> > pcm.20to51 {
> > type route
> > slave.pcm surround51
> > slave.channels 6
> > ttable.0.0 1
> > ttable.1.1 1
> > ttable.0.2 1
> > ttable.1.3 1
> > ttable.0.4 0.5
> > ttable.1.4 0.5
> > ttable.0.5 0.5
> > ttable.1.5 0.5
> > }
> >
>
> You can fino more information here:
> http://alsa.opensrc.org/index.php/Playing_stereo_on_surround_sound_setup_%28Howt
> o%29
> --
> Glauben hei�t nicht wissen wollen, was wahr ist ... Nietzsche
>
> Thanks, this explains thing well... I will give it a try.
> -kane
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