Acoustics Simulation

[ChrisK (Christos Karliampas)]

Hello,
I am a relatively new user of FreeFEM.
I want to simulate acoustics in a room excited by a gearbox.
what will be the desired boundary conditions to find pressure field?
Any idea which should be the value to impose on the gearbox outer surface?

Thanks

[frederichecht (Frédéric Hecht)]

Sorry for the very late answer, but this is a problem of modélisation not a problem of freefem++.