Now i probably sound like an idiot, but where, exactly, should the dynoise file go so that my scripts work?
In the same directory as the blender executable. Also note that I recently updated the modules for use with the new api as well as some improvements, which now also contains a module for OSX compiled by Bischofftep, see the script list thread:
http://www.elYsiun.com/forum/viewtopic.php?t=8095
and the direct link to the modules on theeth’s site, since people have trouble downloading from my site:
http://www.clubinfo.bdeb.qc.ca/~theeth/dynoise.zip
thanks theeth! 
Are those included in 2.31a?