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2. News, Politics, Sports, Mail & Latest Headlines - AOL.com

   homepage.aol.com

   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

3. Journal of the Acoustical Society of America - Wikipedia

   en.wikipedia.org/wiki/Journal_of_the_Acoustical...

   JASA contains news items, book reviews, references to contemporary papers, reviews of acoustical patents, and standards news. [1] According to the Journal Citation Reports, the journal has a 2023 impact factor of 2.1. [2]

4. 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 ...

5. Cellulose insulation - Wikipedia

   en.wikipedia.org/wiki/Cellulose_insulation

   Insulation reduces sound travelling through walls and between floor levels. Cellulose provides mass and damping. This reduces noise in two ways: it reduces the lateral vibration of sheetrock and attenuates the passage of sound along cavities. Cellulose is approximately three times denser than fiberglass, providing a slight improvement in sound ...

6. Noise control - Wikipedia

   en.wikipedia.org/wiki/Noise_control

   Highway noise is today less affected by motor type, since the effects in higher speed are aerodynamic and tire noise related. Other contributions to the reduction of noise at the source are: improved tire tread designs for trucks in the 1970s, better shielding of diesel stacks in the 1980s, and local vehicle regulation of unmuffled vehicles.

7. 8 white noise machines for better sleep - AOL

   www.aol.com/news/8-white-noise-machines-better...

   This white noise machine has a 4.7-star average rating from over 6,460 reviews on Amazon. ... and lets me customize the volume and sound I want to hear.” In addition to white noise, this machine ...