Sound diffusion is the efficacy by which sound energy is spread evenly in a given environment. A perfectly diffusive sound space has usti Aco c certain key acoustic properties which are the same anywhere in the space . A non-diffuse sound space would have considerably different reverberation time as the listener moved around the room.

Acoustic diffusors can not only as sound diffusion ,but also remove coloration and echoes. Sound diffusers are often used in combination with other materials such as sound absorbers, bass traps, ceiling clouds or other Wall provisions to achieve the desired results for the application. The are often used in music training rooms ,recording rooms, churches, multifuncional rooms ,theatres, concert halls and so on