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  2. Acoustic quieting - Wikipedia

    en.wikipedia.org/wiki/Acoustic_quieting

    Sound redirection: One of the obvious ways to reduce the received sound level of an observer is to place the observer out of the path of the highest amplitude sounds. For example, in the area around a jet engine , the sound power levels can be expected to be largest (i.e., loudest) directly in line with the jet's exhaust.

  3. Sound baffle - Wikipedia

    en.wikipedia.org/wiki/Sound_baffle

    Sound baffles on the wall of a recording studio. A sound baffle is a construction or device which reduces the strength (level) of airborne sound. Sound baffles are a fundamental tool of noise mitigation, the practice of minimizing noise pollution or reverberation. An important type of sound baffle is the noise barrier constructed along highways to

  4. Noise control - Wikipedia

    en.wikipedia.org/wiki/Noise_control

    Pathway alterations include physical materials, such as foam, absorb sound and walls to provide a sound barrier that modifies existing systems that decrease hazardous noise. Sound dampening enclosures for loud equipment and isolation chambers from which workers can remotely control equipment can also be designed.

  5. How to fight noise with white noise for a better night's ...

    www.aol.com/fight-noise-white-noise-better...

    Sometimes the only way to combat noise is with more noise. "White noise," "brown noise" and "pink noise" can help you mask unwelcome sounds

  6. Portsmouth I-95 sound walls: When they're coming, how ... - AOL

    www.aol.com/portsmouth-95-sound-walls-theyre...

    NH officials putting sound walls in Portsmouth explain decibels of noise reduction and timeline for project residents have wanted for many years. Portsmouth I-95 sound walls: When they're coming ...

  7. Noise Insulation To Rock Your Walls - AOL

    www.aol.com/news/2010-03-18-noise-insulation-to...

    Speak softly: they could be listening. And if you've got thin walls, you definitely have a problem. There are many ways to muffle the noise coming in and out of your apartment. Our newest find is ...

  8. 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 ...

  9. Anechoic chamber - Wikipedia

    en.wikipedia.org/wiki/Anechoic_chamber

    The mechanism by which anechoic chambers minimize the reflection of sound waves impinging onto their walls is as follows: In the included figure, an incident sound wave I is about to impinge onto a wall of an anechoic chamber. This wall is composed of a series of wedges W with height H.