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Golbez
Dirty Bastid
 From: Michigan
Registered: 06-20-05
Posts: 1770
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http://en.wikipedia.org/wiki/Decibel#Acoustics
So I was doing a little research on hearing loss when I came across this chart in Wikipedia. And this was after I came across the excerpt from the Hearing Loss article.
Long term exposure to environmental noise
Populations of people living near airports or freeways are exposed to levels of noise typically in the 65 to 75 dbA range. If lifestyles include significant outdoor or open window conditons, these exposures over time can degrade hearing. The U.S. EPA and various states have set noise standards to protect people from these adverse health risks. The EPA has identified the level of 70 db(A) for 24 hour exposure as the level necessary to protect the public from hearing loss (EPA, 1974).
* Noise-Induced Hearing Loss (NIHL) typically is centered at 4000 Hz.
* The louder the noise is, the shorter the safe amount of exposure is. Normally, the safe amount of exposure is reduced by a factor 2 for every additional 3 dB(A). For example, the safe daily exposure amount at 85 dB is 8 hours, while the safe exposure at 91 dB(A) is only 2 hours (National Institute for Occupational Safety and Health, 1998). Sometimes, a factor 2 per 5 dB(A) is used.
* Personal electronic audio devices, such as iPods (iPods often reaching 115 decibels or higher), can produce powerful enough sound to cause significant Noise-Induced Hearing Loss, given that lesser intensities of even 70 dB can also cause hearing loss.
It was neat to see World War weaponry in the chart as a comparison, and also informative as to why my ears ring. Concerts, woo.
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| 10-31-06 05:44 AM |
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Golbez
Dirty Bastid
From: Michigan
Registered: 06-20-05
Posts: 1770
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Hmm, continuing my search for knowledge, I ran into this link on lag, for those interested in a more comprehensive overview.
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| 10-31-06 05:53 AM |
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Evil_Lurks
The Father
 From: New Jorsey
Registered: 03-23-05
Posts: 1864
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Haha, Golbez what are you the dbi wikipedia now? 
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In a sec I throw the suc to your **** dick
Everybody hit the deck, Biggie bout to get some wreck
Quick to leave you in a coffin, for slick talkin
You better act like CeCe, and keep on walkin
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| 10-31-06 06:27 AM |
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Golbez
Dirty Bastid
From: Michigan
Registered: 06-20-05
Posts: 1770
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I didn't think of myself as an official spokesman. I only wanted to know stuff. But if it pays well...
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| 10-31-06 08:42 PM |
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