Re: [Alsa-user] Simultaneous AC3/DTS passthrough & stereo analog output

[Bob <sp...@ho...>]

Bob wrote:
> I'm using an Audigy2 in one PC and an SB Live value in another (both 
> Debian etch) and I output to a 5.1 speaker system over S/PDIF coax and 
> to my headphones (via the TV) over analogue stereo.
>
> I have AC3 passthrough working when I call mplayer with -afm hwac3, (I 
> think DTS will work but can't find a test clip) and I can soft decode 
> and downmix the AC3 audio with -ac a52, so that's all great, except that 
> with -ac a52 rear left and right are mixed and I don't get anything out 
> of the LFE track.
>
> What I can't do is both at once which would make life easer for SWMBO.
>
> This is possible in newer versions of MythTV, but obviously as a 
> function of that software, it doesn't help you when playing an ac3 video 
> with mplayer.
>
> My google search (below) has reviled I'm not alone in wanting this but 
> hints that a more general solution may not be possible, however, my 
> search skills are week so I thought I'd ask."ac3 passthrough" "analog 
> (output | stereo | downmix)" (simultaneous | "both at" | "same time")
>
> Has anyone got any suggestions?
>
> I can install more than one sound card, so if it can be done but only on 
> a second card I'm still interested in the solution
>
> Thanks for any help.
>
> PS: I asked the same question on debian-user 20 days ago and 
> mythtv-users 10 days ago but with no luck, sorry to those who are 
> subscribed to the other lists.
>   

Mmm, so no one with any thought's on this?

Is it imposable within the ALSA framework?

Do any of the devs hang around here?

Sorry for following up my own post, bad form bla bla bla