Calculate the room absorption (or noise reduction) in dB, given that you have a 12′ x 12′ room with hardwood flooring, and you wish to install…

Calculate the room absorption (or noise reduction) in dB, given that you have a 12′ x 12′ room with hardwood flooring, and you wish to install carpeting over the flooring to reduce the noise level. (NRC: hardwood: 0.18; carpeting: 0.49)

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