a new upstream version of pnmixer has been released:
Unfortunately, I wasn't aware of some UI changes which causes untranslated and fuzzy strings. I've filed a bug with a patch for de.po:
Patch is also available from here:
Thanks. I have updated to 0.5.1 in rawhide, but I am not yet pushing this to any other branch because of https://github.com/nicklan/pnmixer/issues/13
The old version does not have this problem.