With my colleagues Luís and Mark, I’ve had a paper accepted for the ICASSP 2012 signal-processing conference:
http://soundsoftware.ac.uk/icassp-2012-accepted
I’ve previously co-written a journal paper and a couple of posters, and I’ve done demos, but this is the first conference paper I’ve ever been the primary author of.
(Though it may turn out to be a poster when presented—I gather the organisers decide after acceptance whether to allocate a poster or paper slot based on the presentation schedule.)