A research on the ability to absorb and reflect the incident wave of moving speaker with different configuration has been performed using a finite element modeling in a combination of physical modules of the Comsol Multiphysics package. The plots of the sound absorption coefficients dependences on the frequency of sound waves are presented for various cases. Mechanical oscillatory systems have been investigated through computational experiments in order to determine their ability to perceive and the probability of transmission loss as sound waves are generated through them. It has been concluded that their sound absorption characteristics at different frequencies are very similar to the case of two separated mechanical systems.