Parameters: pfield, value
This NoteProcessor flips all values in designated pfield about an axis (value). The following score:
i1 0 2 80 i1 + . 85 i1 + . 95 i1 + . 100
If processed with an InversionProcessor with value 90 and pfield 4 would result in:
i1 0.0 0.5 100.0 i1 0.5 0.5 95.0 i1 1.0 0.5 85.0 i1 1.5 0.5 80.0
(The p2 and p3 times above are post-processing for a 2 second duration SoundObject with time behavior set to scale.)