Yes quite right, ideal acoustic panels diffusers have a surface which distributes 100 % of a sound range from all corners sphere of action to all corners of supervision. In practice in architectonic acoustic designing, more important is use of effective sound reflection in a mid-frequency and high-frequency range. For many decades of experiments and an expert the certain rules and recommendations for acoustic registration of various premises - cinema halls, audiences, boardrooms, schools were generated. The uniform universal formula of acoustic registration of premises with various functional purposes is not present, the basic criterion defining uses of this or that material is an experience of the master with wide experience of registration and the certain set of knowledge in this area.

On itself the person according to purpose of this premise how many will comfortably feel and there is a definition and an estimation of the master of architectonic acoustic designing. Has historically developed so, that terms acoustic and absorbing became synonyms in acoustic architecture, but for correct, and in the subsequent and comfortable acoustic registration of a premise absorbing and reflecting surfaces are necessary for formation of absorbing, reflection and distribution. Absorber materials for walls and ceilings are widely presented by production of well-known firm Ecophon. Reflecting surfaces are formed by means of acoustic diffusers - panels allowing to create surfaces with the certain acoustic and aesthetic characteristics having the size 600х600 mm, 600х1200мм or other size depending on design and the project. These acoustic panels are ecologically safe, not combustible - a class of flammabillity НГ, are fireproof and executed from the reinforced gypsum.