Cinder block modular diffusor

Details Cinder block modular diffusor Cinder block modular diffusor

1989-11-06

1990-10-23

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Sound absorbing panels

181286, 181288, 181290, 181293, F04B 102, G10K 1126

Patent

active

049644866

ABSTRACT:
The present invention relates to an acoustical diffusor device which is made up of a plurality of specially designed and shaped cinder or concrete blocks which may 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 the quadratic-residue sequence developed by Karl Frederick Gauss. These surface irregularities arenique in that they provide a flat power spectrum and constant scattered energy in the diffraction directions.

REFERENCES:
patent: 4821839 (1989-04-01), D'Antonio et al.
M. R. Schroeder, Self-Similarity and Fractals in Science and Art, J. Audio Eng. Soc., vol. 37 No. 10, Oct. 1989, pp. 795, 806.

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