2 summary:: FIXME: APF purpose.
3 categories:: UGens>Filters>Linear, UGens>Undocumented
8 FIXME: APF description.
17 FIXME: explain parameter in.
22 FIXME: explain parameter freq.
27 FIXME: explain parameter radius.
32 Output will be multiplied by this value.
37 This value will be added to the output.