Author Topic: Thinking sound barrier? Helpful links attached...  (Read 3313 times)

AB

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Thinking sound barrier? Helpful links attached...
« on: November 03, 2005, 02:18:46 AM »
http://www.cyro.com/Internet/SiteContent.nsf/paraglas2004!OpenPage

(this is for the clear sound barrier option, best company I have found so far. Just about to connect with them for contractors in Southern California USA)  



http://www.fhwa.dot.gov/environment/noise/5.htm

(positive/negatives of different materials, via USA gov study.)



http://www.fhwa.dot.gov/environment/noise/3.htm#3

( See 3.4 for sound barrier defraction info, very good, bottom line, high frequencies, when deflected off a wall, continue up, low, bend down. High = wind noise in wheels of cars, Low = rumble of trucks)



http://www.fhwa.dot.gov/environment/keepdown.htm

(great USA gov article about basics of sound barriers. See "Type of material" for 20kg density info, tho entire article is really helpful)  



http://www.simetric.co.uk/si_wood.htm

(info for wood density, good against the 20kg info)