For the audio part I am using an in-house tool, that can simulate the sound of any room. Like you probably guessed my 3D-Enige of choice is Ogre3D.
Its pretty amazing what you can do with it and Gui3D. I knew nothing about it, but had a prototype in like 2 Weeks.
But since I have/had lots of other stuff on my list and I didn't want dive into this whole shader/glsl/dynamic lighting-stuff, I'm pretty much using only basic diffuse textures with baked lightmaps from blender.
The model in the Picture is basically the private Cinema at the Fraunhofer IIS. Models and Textures were also done as part of my thesis (btw: I'm an electrical engineer with focus on communication engineering -> system-theorie and stuff, thats why ended up at Fraunhofer

I cleared the Cinema-screen for the screenshots, but usually the listeningtest is printed on there (Instructions, Play/Pause, Star-Rating and so on)











At last I want to say: a big THANK YOU to all the Developers of Ogre3D, Gui3D, Gorilla and the Blender Exporter for providing these awesome tools.
Any feedback?