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2. Room acoustics - Wikipedia

   en.wikipedia.org/wiki/Room_acoustics

   Room acoustics is a subfield of acoustics dealing with the behaviour of sound in enclosed or partially-enclosed spaces. The architectural details of a room influences the behaviour of sound waves within it, with the effects varying by frequency.

3. Underlay - Wikipedia

   en.wikipedia.org/wiki/Underlay

   In general, it is a layer which is underneath another layer, [2] so underlay is thus also used to describe many different surface-covering products. In vinyl flooring or "linoleum", the underlay is the thin layer of plywood that is fastened over the structural subfloor to create a uniform, smooth platform for the sheet vinyl. For laminated wood ...

4. Acoustic transmission - Wikipedia

   en.wikipedia.org/wiki/Acoustic_transmission

   Acoustic control measures usually include attempts to isolate the source of the impact, or cushioning it. For example, carpets will perform significantly better than hard floors. Flanking transmission - a more complex form of noise transmission, where the resultant vibrations from a noise source are transmitted to other rooms of the building ...

5. Absorption (acoustics) - Wikipedia

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

   An acoustic anechoic chamber is a room designed to absorb as much sound as possible. The walls consist of a number of baffles with highly absorptive material arranged in such a way that the fraction of sound they do reflect is directed towards another baffle instead of back into the room.

6. US lawmakers seek to halt weapons sales to UAE, citing Sudan

   www.aol.com/news/us-lawmakers-seek-halt-weapons...

   U.S. Senator Chris Van Hollen has introduced legislation seeking to halt American weapons sales to the United Arab Emirates until the United States certifies that the UAE is not arming the ...

7. Parents Accused of Leaving Toddler in Closet Overnight with ...

   www.aol.com/parents-accused-leaving-toddler...

   Two Indiana parents are in custody after allegedly leaving their 2-year-old daughter in a closet overnight with a space heater turned all the way up.