Diffusor application in rooms

This paper discusses the application of diffusers in music production rooms , such as performance facilities, and music reproduction rooms, such as rec ording studios. In the former, diffusers help create an acoustic which enha nces the sound heard by both musicians and audience, whereas in the latter diffusers are used to provide a more neutral critical listening environment . Diffusers are primarily intended to control first order reflections, in c ontrast to the statistical application of absorption to control reverberati on. By diffusing early reflections, specularity effects such as coloration, image shifting, harshness and acoustic glare can be mitigated. Diffusers c an also be used to help maintain ambiance, promote even scattered energy co verage, improve spaciousness and remove echoes. Some case studies from diff erent room types are presented. (C) 2000 Elsevier Science Ltd. All rights r eserved.