how to set equalizer controls from command-line

Please have a look at this question on Unix Stack Exchange.

Looking at the code for

src/modules/module-ladspa-sink.c

I see

.set_cb = set_algorithm_parameters

which suggests there is a way to set the parameters at runtime. However, I can't find any instructions for doing this from the command-line or from a library. If I could do it, then maybe I could load a LADSPA equalizer like mbeq_1197 and control its parameters via this interface, thus ansering the SE question.

I believe that your already-excellent software would benefit from having this feature documented, or explained to users via help forums like Stack Exchange. Thank you.