The Rayleigh Integral models the acoustic field in the semi-infinite region exterior to a vibrating plate set in an infinite rigid baffle. The Rayleigh Integral method was developed in the following research paper .
The Fortran (77) subroutine RIM3 implements the Rayleigh Integral for general 3D problems: RIM3 delivers a computational solution to the acoustic field produced by a radiating plate placed on an infinite baffle.
The Fortran routine is versatile and easy to use. The description of how to use the code is given on the following link .