ESTIMATION OF RANDOM INCIDENCE SOUND TRANSMISSION LOSS OF MULTIPLE STRUCTURE WALLS BY FOUR-TERMINAL NETWORK THEORY

Abstract

Concerning the calculation method of random incidence sound transmission loss (TL) of multiple structure walls, a theoretical investigation was made by applying the electrical four-terminal network theory, and the validity of the calculation method was examined by scale model and full-scale experiments. As a result, it has been found that the approximate sound transmission loss characteristics of multiple structure walls of relative simple constructions can be predicted by. the calculation method based on the four-terminal net-work theory.