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acoustic filter
acoustic filter An acoustic filter is a structure designed to control how sound waves pass through a system by selectively reflecting, absorbing, or reducing certain wave components.
An acoustic filter is a structure designed to control how sound waves pass through a system by selectively reflecting, absorbing, or reducing certain wave components. In the source material, it refers to a multilayer duct arrangement that uses porous material and flexible membranes to tune sound attenuation, especially at low frequencies.