Absorbers and diffusers in rooms and geometric models

So far, this book has discussed how to design diffusers and absorbers, but mostly in isolation of where and how they are applied. This chapter starts by presenting some of the issues arising from the application of absorbers in rooms, especially the issue of translating absorption coefficients between the free field, reverberation chamber, and real room applications. It then proceeds to discuss how absorption and diffuse reflection properties are represented in geometric room acoustics models and how this affects prediction accuracy.