The audio limiter in use by jacktrip is limiterdsp.dsp

To regenerate ../src/limiterdsp.h, you can say (if you have Faust installed)

  make headers

in this directory to create ./headersdir/limiterdsp.h
and then copy that to ../src/ to reinstall it.

To test the limiter separately, you can load it into
fausteditor.grame.fr to compile and download an executable.  With
Faust installed, you can do it at the command line:  To make a
standalone JACK app for Mac, say

  faust2jaqt limiterdsp.dsp

For Linux, you want either that or

  faust2jack limiterdsp.dsp

(to use GTK in place of Qt for the GUI).

Then you just run it and patch it in (using qjackctl) between your audio capture and jacktrip input.