Compared to the commonly used synthetic fibrous materials, natural fiber represents an eco-friendly solution in various engineering fields. Noise control is an important application of natural fibers due to the unique acoustic characteristics. Studies on the sound absorption of hemp fibers have attracted more and more attention in recent years. Generally, hemp products for sound absorption mainly including nonwoven fabrics and fiber-reinforced composites. This review has gathered the most recent advances on the acoustics of hemp fibers, and also the sound absorption design principles of hemp-based materials. A detailed information related to the improvement of the sound absorption properties of hemp is given, which mainly including the optimization of manufacturing, materials component, bulk density, morphologies, and structural parameters, etc. Hemp fibers exhibit robust acoustical performance, and the present work is beneficial to the development of sound absorption hemp-based materials.

与常用的合成纤维材料相比，天然纤维代表了各种工程领域的环保解决方案。由于独特的声学特性，噪声控制是天然纤维的重要应用。近年来，对大麻纤维吸声的研究引起了越来越多的关注。通常，用于吸声的大麻产品主要包括无纺布和纤维增强复合材料。这篇综述收集了大麻纤维声学方面的最新进展，以及大麻基材料的吸声设计原理。给出了与改善大麻吸音性能有关的详细信息，主要包括制造，材料成分，堆密度，形态和结构参数的优化。