Are there free programs to simulate the propagation of sound waves?

Question

Audio

In particular, it is necessary to simulate the propagation of a simple sound wave. So that you can specify several sound sources, draw a couple of walls at an angle and see visually how the wave will propagate, where it will reach and where it will go out. If you can specify the material of the walls, then generally super. I didn’t find anything free, but paid ones are all monstrous and complex systems, like 3dmax.

Answer 1

in an ideal "spherical vacuum" it will never die out, it will go around the Earth many times, again and again. Just very quiet) There is
a big difference between light / particles and sound with the so-called. there are no reflections, probably - why not model your task after all in 3D, but give properties to light, environment and materials, meaning sound propagation.

Answer 2

3ds Max for modeling acoustics?)) Is this a joke?