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A comment on Soundproofing for New York Noise. Parent comment

Re:Soundproofing for New York Noise by isolate on Sunday December 20, 2015 @03:21PM (#10768160)
It's ~90dB and bikers routinely retrofit their bikes with loud, illegal exhausts that are louder than that to show off and because they believe it makes them safer on the road - "loud pipes save lives". 100dB+ is common, that's 10x louder than the already generous limit.
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Re:Soundproofing for New York Noise by djaychela on Monday December 21, 2015 @03:30AM (#10770188)
100dB isn't 10* louder in terms of perception, 10dB will be heard as a doubling in volume to a human listener (despite being 10 the energy as you correctly state)
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