Sound pollution has become an important issue that has faced world population. This issue has been addressed by scientists of various disciplines. Expansion and advancement of industries in different fields has necessitated the need to control noise in areas such as building and traortation. Development of techniques for control of noise is a challenge that has to be faced by engineers and designers of various disciplines. Various means using different structures that are used as sound absorbers are available. The aim of this study is to introduce a novel fibrous structure composes of Estabragh fibers that posses unique property. Estabragh is a natural hallow fiber which is grown widely in Iran. The unique hallow structure of Estabragh makes the fiber the most suitable means for control of noise. Production of fibrous carded layers due to the fact that Estabragh is a crimpless is an impossible task. Thus in order to facilitate the production of nonwoven layers Estabragh blendes with polypropylene fibers was used. In this study, five different blends of fibers were obtained containing 100%, 75%, 50%, 25% Estabragh and 100% of polypropylene fibers. Nonwoven layers at three different weights using a laboratory scale carding machine were produced. The carded layers were needled on a laboratory scale needle punching machine using five different punch densities. In total 75 needled experimental samples were prepared. The sound absorption property of the samples was evaluated at five different frequencies using Texsonic meter. This apparatus measures the noise absorption coefficient (NAC) of the sample on impedance tube principle. Among two different techniques that the impedance tube method employs, movable microphone technique was used in this research. Results indicated that sound absorption coefficients of the samples depends upon various parameters such as the percentage of the Estabragh fibers in the blend, mass per unit area of the sample, the amount of punch density exerted on the sample during needling operation and the frequency. It was found that sound absorbency increase with the increase in the proportion of Estabragh fibers in the blend. This is due to the fact that voids in the sample are increased as Estabragh fiber content of the blend is increased. Despite of excessive damage to fibers, higher punch densities result in improvement of sound absorption by the samples. More punch densities imparted to the nonwoven layers cause the fibers entangling more. This phenomenon result in decrease the pore size and increase the frictional resistance of layer simultaneously. However, it should be noted that due to fineness of Estabragh fibers it is not possible to use excessive amount of punch densities. The results also showed that sound absorption coefficient increases as mass per unit of sample is increased. It is concluded that the sample exhibited the best acoustic properties at frequency of 1000Hz. A linear regression was used in order to predict the noise absorption behavior of lightly needled Estabragh nonwoven layers. The correlation coefficient between predicted and observed NAC values is 0.758 indicating an acceptable capability of the regression model built. Key words Acoustic, Estabragh fibers, NAC, needling, nonwoven, punch-density, sound-pollution