Hey Voelund. I recently discovered (through desperation working on a current mixing project) that a multiband compressor set so that only two bands in the range of sibilance are active work a treat! You can even chain them if some sibilance is harsher so as to not make one comp work beyond its useable point.
I have the first active band from around 5.8k (to deal with nasty "shhhh" sounds) to about 9k and the second active band from 9k up to catch the upper air overloads from extremely sibilant singers. Each active band's threshold, ratio and release can be adjusted to suit.
Everything below 5.8 is left untouched by having the lower band's threshold up as high as it can go with a 1:1 ratio.
Give it a try - very transparent
Dags
I have the first active band from around 5.8k (to deal with nasty "shhhh" sounds) to about 9k and the second active band from 9k up to catch the upper air overloads from extremely sibilant singers. Each active band's threshold, ratio and release can be adjusted to suit.
Everything below 5.8 is left untouched by having the lower band's threshold up as high as it can go with a 1:1 ratio.
Give it a try - very transparent
Dags
So many songs, so little time!