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Soundproofing is any means of impeding sound propagation. There are several methods employed including increasing the distance between the source and receiver, decoupling, using noise barriers to reflect or absorb the energy of the sound waves, using damping structures such as sound baffles for absorption, or using active antinoise sound generators.[1][2]
Acoustic quieting and noise control can be used to limit unwanted noise. Soundproofing can reduce the transmission of unwanted direct sound waves from the source to an involuntary listener through the use of distance and intervening objects in the sound path (see sound transmission class and sound reduction index).
Soundproofing can suppress unwanted indirect sound waves such as reflections that cause echoes and resonances that cause reverberation.
- ^ Hawkins, Timothy Gerard (2014). Studies and research regarding sound reduction materials with the purpose of reducing sound (PhD thesis). California Polytechnic State University. doi:10.15368/THESES.2014.121. S2CID 13922503.
- ^ "Acoustics of Buildings: including Acoustics of Auditoriums and Sound-proofing of Rooms". Nature. 114 (2855): 85. July 1924. Bibcode:1924Natur.114R..85.. doi:10.1038/114085b0. hdl:2027/mdp.39015031200952. ISSN 0028-0836. S2CID 46370464.