Not strictly linux (well, linux can do this), but some clever people in here who may know.
We have a large indoor arena with outlying stables. We need to upgrade the existing, and elderly, PA system which uses 100v speakers and it's been suggested putting speakers in the outlying buildings would be quite useful.
Up until that point I'd only been thinking of like-for-like replacement and adding more speakers, but then I wondered about IP as a solution as we have a 100mbit network covering most areas already and have quite a lot of POE included if that's an option (Although the -af standard limits it to 47vdc at 1a, which may not be enough for a decent speaker and mains may also be needed).
A quick google suggests IP (multicast/SIP) speakers exist, and Rob's spent some time and come up with a broadcaster. (He also suggested an rpi, but I really want this to be foolproof and am looking for some sort of embedded box that can take multiple inputs, perhaps with faders, and magic them into something the speakers can use. We need 2 or 3 inputs and mono only - just a box that'll sit there and do its thing would be perfect.)
I wondered if anyone in here had experience in such things, and could share any positive or negative experiences, any standards to look out for, any gotchas or any good suppliers? Or even cackle wildly, point a finger and proclaim it'll never work!
