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2. Sound transmission class - Wikipedia

   en.wikipedia.org/wiki/Sound_transmission_class

   Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound.In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations.

3. Rite Rug Flooring - Wikipedia

   en.wikipedia.org/wiki/Rite_Rug_Flooring

   Today, RiteRug Flooring is run by the second and third generations of the Goldberg family. [7] [8] The company has expanded its product line over 90 years of business to include the sale and installation of hardwood, laminate, tile, and vinyl flooring. [7] RiteRug Flooring currently operates 40 stores in 11 states, 12 of which are in Central ...

4. Underlay - Wikipedia

   en.wikipedia.org/wiki/Underlay

   Underlay or underlayment [1] generally refers to a layer of cushioning made of materials such as sponge rubber, foam, felt, crumb rubber, or recycled plastic; this material is laid beneath carpeting to provide comfort underfoot, to reduce wear on the carpet, and to provide insulation against sound, moisture, and heat. [2]

5. 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 ...

6. AOL - Finance News & Latest Business Headlines - AOL.com

   www.aol.com/careers

   Get breaking Finance news and the latest business articles from AOL. From stock market news to jobs and real estate, it can all be found here.

7. Micro perforated plate - Wikipedia

   en.wikipedia.org/wiki/Micro_perforated_plate

   A micro perforated plate (MPP) is a device used to absorb sound, reducing its intensity. It consists of a thin flat plate, made from one of several different materials, with small holes punched in it. An MPP offers an alternative to traditional sound absorbers made from porous materials.