Note: I rewrote this question because the signal-to-noise ratio was approaching 0.
Just installed pulseaudio-dnla on my Ubuntu 14.04.2 system to create pulse sinks for my ROCKIs so I can stream audio to any of my ROCKIs, hopefully choosing which of the ROCKIs to stream to from within mpd.
Pulseaudio-dlna is working great my ROCKIs and VLC - I can select any of my 3 ROCKIs as the VLC Audio Device by name, and pulsaudio-dlna sends the audio to that ROCKI. Couldn't be easier.
But I'm having trouble making it work mpd. I got past the user-space/system-wide pulseaudio/mpd issue by running mpd in user-space. I can get it to send audio to one device using padevchooser (as Massimo suggested below). But when I try to make an output for each ROCKI using the same sink names that work for VLC:
audio_output {
type "pulse"
name "rockigreen"
}
audio_output {
type "pulse"
name "rockigarage"
}
...no sound comes out of my ROCKIs.