diffusion,acoustics,room treatment,ethan winer Acoustic treatment, good info for any serious music listener

"This is the latest release in the RealTraps "See and Hear" video lecture series. Most people have no way to hear what diffusors do or how they sound in a room. So this video explains diffusion in plain terms with no math, then lets you hear an acoustic guitar recorded in close proximity to five different surface types - a QRD diffusor, a poly diffusor, absorption, a bare wall, and a typical bookcase. "