media-sound/soundconverter version 2.1 is available at the devs website http://soundconverter.org/ - sorry I can't provide a working ebuild.
A "quick/dirty/untested" ebuild for 2.0.1 provided by frostwork: http://paste.pocoo.org/show/544723/
Created attachment 300787 [details] soundconverter-2.0.1.ebuild Attached slightly modified copy of previously linked ebuild, removing RESTRICT="test" as it has indeed been fixed upstream per http://developer.berlios.de/bugs/?func=detailbug&bug_id=17426&group_id=3213
Forgot to add, appears to build & run just fine here.
Created attachment 300791 [details, diff] soundconverted-2.0.1.ebuild.patch Patch from current. Disables py-compile, alphabetizes depends, byte-compiles python, etc. I was about to commit this but infra is having CVS problems ... sorry
2.0.1 in portage