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Owing to a steep rise in the urban population, there has been continuous growth in the construction of buildings, public or private transport like cars, motorbikes, trains, and planes at a global level.
Hence, urban noise has become a major issue affecting the health and quality of human life. In the current environmental scenario, architectural acoustics has been directed towards controlling and manipulating sound waves at a desired level.
Structural engineers and designers are moving towards green technologies, which may help improve the overall comfort level of residents. A variety of conventional sound-absorbing materials are being used to reduce noise, but attenuation of low-frequency noise still remains a challenge.
Recently, acoustic metamaterials that enable low-frequency sound manipulation, mitigation, and control have been widely used for architectural acoustics and traffic noise mitigation. This review article provides an overview of the role of acoustic metamaterials for architectural acoustics and road noise mitigation applications. The current challenges and prominent future directions in the field are also highlighted. View Full-Text