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  2. Soundproofing - Wikipedia

    en.wikipedia.org/wiki/Soundproofing

    A pair of headphones being tested inside an anechoic chamber for soundproofing. 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 ...

  3. Sound Devices - Wikipedia

    en.wikipedia.org/wiki/Sound_Devices

    Website. www.sounddevices.com. Sound Devices is an American corporation headquartered in Reedsburg, Wisconsin, with additional offices in Madison, Wisconsin and Rickmansworth, UK. [1] Sound Devices designs and manufactures professional audio and video equipment.

  4. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eventually resulted in ...

  5. Sound masking - Wikipedia

    en.wikipedia.org/wiki/Sound_masking

    Sound masking is the inclusion of generated sound (commonly, though inaccurately, referred to as "white noise" or "pink noise") into an environment to mask unwanted sound. It relies on auditory masking. Sound masking is not a form of active noise control (noise cancellation technique); however, it can reduce or eliminate the perception of sound.

  6. Acoustical engineering - Wikipedia

    en.wikipedia.org/wiki/Acoustical_engineering

    Acoustical engineering (also known as acoustic engineering) is the branch of engineering dealing with sound and vibration. It includes the application of acoustics, the science of sound and vibration, in technology. Acoustical engineers are typically concerned with the design, analysis and control of sound. One goal of acoustical engineering ...

  7. Sound attenuator - Wikipedia

    en.wikipedia.org/wiki/Sound_attenuator

    Generally, sound attenuators consist of the following elements: An inner perforated layer of light gauge sheet metal (baffle) The baffle is then filled with sound-absorptive insulation. In high velocity systems, or when there is a concern for particulate matter in the air stream, a bagged or mylar -faced insulation is used. Packless sound ...

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