Acoustical diffusing and absorbing cinder blocks

Abstract

Disclosed are embodiments of structural acoustical cinder blocks including blocks which are intended to be assembled together through the use of mortar to provide a diffusor of desired shape and configuration. Each diffusor includes a plurality of wells, the depths of which are determined through the use of number theory sequences, such as, for example, the quadratic-residue sequence developed by Karl Frederick Gauss. The surface irregularities formed in the blocks are unique in that they provide a flat power spectrum and constant scattered energy in the diffraction directions. Each of the blocks also includes a low frequency sound absorbing chamber. As the blocks are installed, a structural stacked bond is formed on both the diffusor face and the rear structural face. If desired, a single block may be made which includes an entire sequence of wells and dividers.

Dependencies are inferred from the claim text.