What is the current status of this issue? I am also trying to setup multizone audio in my house. I would like to be able to use multiple soundcards in the core. All of my speaker wiring is terminated in a central location and running the audio out of the core makes the most sense (also cost effective). I have a dedicated core and have been trying to use the xine audio plugin tied to the core as it's controlling device. Any hints or is this still a work in progress.
I still didn't give up - but I had to stall a little bit, cause I had to dig it by myself into Xine Audio Player code and I run into problems I couldn't solve - so my Xine Audio crashes. at that time all Pluto stuff was busy, so I gave it aside for a while. Also there were some major problems with xine under Pluto so I decided to start doing things again when Xine will be more or less stable.
If anyone from Pluto is reading this, I'd appreciate some more info how Xine pluto wrapper is progressing and if there is any chance of helping doing this.
Basically I've added new parameters to Xine player Device (I'm not sure if they got into main Pluto database) and then added if/then/else on spots where we don't need video features. Some work will also be necessary on volume control (I think this one is in app_server right now) to distinguish volume controls (right now only default volume control is accessed by hardcoded default).
I'm still seeking for answer on this question in Linux sound community but still didn't get any usable response :
"is there any way to implement easily audio multizone mixer/router purely in software with multiple sound stereo outputs, where one could route/mix/select between different audio sources and outputs ?"
(my emails to linux-sound mailing list are unanswered).
Anyone with further discussion on this matter (it would be major enhancement - cause we could get rid of expensive external multizone audio devices) ?