wbinek

I've found solution. Reflected direction vector was not normalised, so the particle speed was decreasing with each diffuse reflection. The solution is: https://github.com/d-cooper/I-Simpa/commit/5e98f6193eca8a52e8d0904550010ec25cc87452

Same problem, Windows 10, python 3.6.4. Is there any idea how to fix it?

In SPPS properties you can change the surface receiver mode from "Intensity" to "SPL". In "SPL" mode there should be no dependency on the angle of incidence for the surface...

Could you please share the model you use for testing as it is really nice. I will look into it, but I can't promise a quick and easy fix :)

I do understand the problem. I will look into it tomorrow. I am almost certain that there is no explicit angle dependency in the surface receiver source code in SPL...

Let's start with the source of angle dependency. In general you are right that in SPL mode the angle dependency should be neglected, in receiver's Intensity mode we include the...

As for vertical receiver where no rays are detected - I would say that it is impossible to be easily fixed without some hacky solutions that may backfire at some...

I have not done any tests on other acoustic parameters, but I suspect the agreement between point and surface receivers should be improved. You are correct, that the number of...