Frahm

This sounds very interesting for the sort of things I work on. I'm going to check it and I'm wondering how much this product is different from some other tools, like, for example, GRM SpaceGrains.

OK, I tried the demo. GRM SpaceGrains has really many common points and is more powerful, from a certain point of view, but it works by setting its parameters which represent only the sound features, not a simulated physical model. The strongest merit of Frahm, comparing the two, seems on the contrary to be the realistic environment in which the user is set, the physical modelling, which permits you to really envision what is happening: you are there, in that point of the "room", and particles of sound are flying around you, and you can even listen to the Doppler effect, which changes according to the real distance from where you are and according to the motion speed. One can "physically" envision the situation. Both the softwares are very good, but their approaches are different.