Initially I wanted to add an equalizer to my mixer [1]. When I found module-ladspa-sink I thought that this would be event better: Having different kind of effects would be something really unique (and usefull)... Now as you mention the built in equalizer I remember having seen it. I will have a deeper look at it. As I already have all elements for ladspa (it works with load and unload - but is a bit hack): So I will surely return to that . Thanks /nik [1] http://kde-look.org/content/show.php/Veromix+-+volume+control+%2B+soundmenu?content=116676&PHPSESSID=70bc0e6776e4563b5518e9cb1bb54f11