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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 attenuator - Wikipedia

   en.wikipedia.org/wiki/Sound_attenuator

   A sound attenuator, or duct silencer, sound trap, or muffler, is a noise control acoustical treatment of Heating Ventilating and Air-Conditioning (HVAC) ductwork designed to reduce transmission of noise through the ductwork, either from equipment into occupied spaces in a building, or between occupied spaces.

4. Absorption (acoustics) - Wikipedia

   en.wikipedia.org/wiki/Absorption_(acoustics)

   An example of a material in which absorption can observed: sound absorbing foam, also known as acoustic foam.. In acoustics, absorption refers to the process by which a material, structure, or object takes in sound energy when sound waves are encountered, as opposed to reflecting the energy.

5. You can find huge savings in Amazon's secret overstock ... - AOL

   www.aol.com/lifestyle/you-can-find-huge-savings...

   Tozo HT2 Noise-Canceling Headphones. $40 $80. ... have heavy-duty handles and easily fold down when not in use. ... you can just lift it off without getting the curtain involved. Save $10 with ...

6. Sound transmission class - Wikipedia

   en.wikipedia.org/wiki/Sound_transmission_class

   Adding absorptive materials to the interior surfaces of rooms, for example fabric-faced fiberglass panels and thick curtains, will result in a decrease of reverberated sound energy within the room. However, absorptive interior surface treatments of this kind do not significantly improve the sound transmission class. [ 19 ]

7. 7 Ways to Improve Your "Sleep Hygiene" & Get a Good ... - AOL

   www.aol.com/7-ways-improve-sleep-hygiene...

   A white noise machine. Earplugs. A light-blocking eye mask. Blackout curtains. ... promoting relaxation and reducing anxiety. Some folks enjoy a cup of warm chamomile tea before bed.