This is a very naive idea. I confess I know jack about virtual reality or those glasses people wear. 

I wonder, imagine if you could have an acoustic kit, made of attachable speakers, microphone modules, and a central processing unit. You disperse around a room, in carefully considered locations. and use it the speakers send pulses that bounces on objects. You use data from the microphones to get quickly a 3D representation or CAD file of the environment.

Is this possible, at all?