By increasing noise pollutant in various environments such as community halls, theater and cinema, residential building, etc. acoustic significance and increased sound absorption have been taken into consideration. Carpet and moquette as the most widely used flooring have a significant role on improving the quality of the sound in the conference rooms and home. There for the study of the structural effect of the carpet on acoustic and sound absorption should be considered. In general, carpets are always under the influence of different forces, whether static or dynamic, and these forces cause their depreciation and structural change. Researches have shown that acrylic fiber has higher sound absorption and high resistance to dynamic loads compared to other fibers. The goal of this project is to study the effect of carpet wear over time on the acoustic properties of a machine-made carpet. In this research, machine-made carpet 500 reed of different density have been used. The Traffic Exposure simulation test was performed by a dynamic load device on the samples. The structure and appearance wear of the carpets were measured and compared with weight and height of the piles before and after the dynamic load. Impedance tube method was used to perform sound absorption test on samples in frequencys 80 to 6300 kHz. The results showed that changing the amount of Traffic Exposure causes a change in the structure and thickness of the carpet. Thus, by varying the resistance to airflow, the amount of sound absorption changes. The difference in mean of treatments was considered at a meaningful level of 0.05. These differences were observed meaningful. Experimental modeling was implemented using the Delany-Bazley equations modify in MATLAB software and then the coefficients of the equation were corrected. The curve obtained from the above equation is consistent with the curves of the control samples.