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  2. Noise control - Wikipedia

    en.wikipedia.org/wiki/Noise_control

    Acoustical wall and ceiling panels are a common commercial and residential solution for noise control in already-constructed buildings. Acoustic panels may be constructed of a variety of materials, though commercial acoustic applications will frequently be composed of fiberglass or mineral wool-based acoustic substrates.

  3. Noise barrier - Wikipedia

    en.wikipedia.org/wiki/Noise_barrier

    A noise barrier (also called a soundwall, noise wall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed to protect rich people from noise pollution. Noise barriers are the most effective method of mitigating roadway , railway, and industrial noise sources – other than cessation of the source activity or use ...

  4. Acoustic foam - Wikipedia

    en.wikipedia.org/wiki/Acoustic_foam

    A close-up image of acoustic foam. Acoustic foam is an open celled foam used for acoustic treatment. It attenuates airborne sound waves, reducing their amplitude, for the purposes of noise reduction or noise control. [1] The energy is dissipated as heat. [2] Acoustic foam can be made in several different colors, sizes and thickness. [3]

  5. Architectural acoustics - Wikipedia

    en.wikipedia.org/wiki/Architectural_acoustics

    An anechoic chamber, using acoustic absorption to create a dead space. Interior building surfaces can be constructed of many different materials and finishes. Ideal acoustical panels are those without a face or finish material that interferes with the acoustical infill or substrate. Fabric covered panels are one way to heighten acoustical ...

  6. Acoustic panel - Wikipedia

    en.wikipedia.org/wiki/Acoustic_panel

    An acoustic board is a board made from sound absorbing materials, designed to provide sound insulation. [3] [4] Between two outer walls sound absorbing material is inserted and the wall is porous. Thus, when sound passes through an acoustic board, the intensity of sound is decreased. The loss of sound energy is balanced by producing heat energy.

  7. 20 products AOL editors have actually tested that are on sale ...

    www.aol.com/lifestyle/products-aol-editors-have...

    We put a lot of products to the test at AOL. Here are our favorites on sale for Black Friday, including Keen sandals, Allbirds sneakers, and noise cancelling headphones.

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