http://bugs.winehq.org/show_bug.cgi?id=29294
--- Comment #56 from Antonio López amlopezalonso@gmail.com 2013-02-22 09:39:34 CST --- I moved into the setup described in:
http://wiki.winehq.org/Sound?rev=50
and sound works ok now (I get Qjackctl icon frozen though but that's a minor issue).