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Topic: Anechoic room

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	Submarine - Wikipedia, the free encyclopedia
		On modern military submarines the outer hull is covered with a thick layer of special sound-absorbing rubber, or anechoic plating, to make the submarine quieter.
		In many early classes of submarines (see history), the Control Room, or "Conn", was located inside this tower, which was known as the "conning tower".
		The pressure hull is generally constructed of thick high-strength steel with a complex structure and high strength reserve, and is separated with watertight bulkheads into several compartments.
	en.wikipedia.org /wiki/Submarine (9012 words)

	About Us
		The introduction of an absorbent into the surfaces of a room will reduce the sound pressure level in that room by not reflecting all of the sound energy striking the room's surfaces.
		A room in which the boundaries absorb nearly all the incident sound, thereby, effectively creating free field conditions.
		A measurement of "noise reduction" combines the effect of the sound transmission loss performance of structures separating the two areas or rooms, plus the effect of acoustic absorption present in the receiving room.
	www.ies2000atlanta.com /about.htm (4700 words)

	Eight-Year Index to Noise/News International (Site not responding. Last check: 2007-10-31)
		Design and performance of a hemi-anechoic room for measurement of the noise emitted by computer and business equipment (Lang, Maling, Nobile, Wise and Yeager), 1: 11
		Room Noise Criteria: The State of the Art in the Year 2000, 8: 106
		USA: Woodruff school has new anechoic chamber, 6: 166
	users.aol.com /inceusa/indxnni.html (4654 words)

	Ackadia's news and views page ~ 2004
		Basically - which I again predicted - it's a convergence thing and one that will roll forward.
		The IT industry is ploughing into the living room and we rarely take prisoners.
		BUT, there's no stocks in the UK and it hasn't been tested with the ATI X800 / NV6800, nor for the i925 boards and 3.6Ghz P4's.
	www.ackadia.com /computer/computer-news/news-2004.php (6760 words)

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