There are currently two calls related to soundart on
netEX – networked experience – http://netex.nmartproject.net
which might be of interest to you
1.
Call for work – deadline 15 February 2008
Sonic Fragments: Narrative and Mediation in Sound Art
Princeton University, Princeton, NJ
March 28-29, 2008
http://www.nmartproject.net/netex/?p=209
2.
Call for music and papers – deadline 8 February 2008
ICMC 2008 – International Computer Music Conference
Belfast 2008
http://www.nmartproject.net/netex/?p=208