Diffusor application in rooms

This paper discusses the application of diffusors in music production rooms, such as performance facilities, and music reproduction rooms, such as recording studios. In the former, diffusors help create an acoustic which enhances the sound heard by both musicians and audience, whereas in the latter diffusors are used to provide a more neutral critical listening environment. Diffusors are primarily intended to control first order reflections, in contrast to the statistical application of absorption to control reverberation. By diffusing early reflections, specularity effects such as coloration, image shifting, harshness and acoustic glare can be mitigated. Diffusors can also be used to help maintain ambiance, promote even scattered energy coverage, improve spaciousness and remove echoes. Some case studies from different room types are presented.