Porous materials such as plastic foams, fibrous and granular materials are often used in buildings, vehicles, airplanes, etc. to control noise pollution. In order to obtain an accurate prediction of its response as a function of frequency, several parametric models have been proposed. However, the semi-phenomenological models are the most used to describe the acoustic behavior of porous materials with rigid or flexible structure according to a certain number of macroscopic physical properties related to the internal structure of the material and essential to their evaluation. Among these models, the one proposed by Johnson et al. to describe the complex density of an acoustic porous material with an immobile skeleton and arbitrary pore shapes. The objective of this work is to study the effect of these parameters involved in the corrected Johnson-Allard model recently introduced by Sadouki [Phys. Fluids 33, (2021)], on the transmitted signal in the low frequency regime of ultrasound.

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