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[万花筒] 【整理】2013-03-15&03-17 高分贝耳机——听力杀手

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[Homework]【整理】2013-03-15&03-17 高分贝耳机——听力杀手

Story affecting every American family,here's the question,are your earphones ruining your hearing,right now.tonight are millons and millions of Amerians walking aronud listening to music,but ensuring they were not be able to hear as well in the years ahead.tonight the mayor of New Yorks says it's time to send out an alarm,that the ABC's chief medical editor Doctor Richerd ..is stepping in.30 years ago,people in there 20s could all hear the rustle of leaves,the drip of raindrop,the babble of children.Now for one in five of them,those sonnds were gone forever.
Normally peole will come in their 50s and 60s with hearing loss.and now that have shifted into people in their 30s and 40s.in fact,Doctor Gerge ....has to tell more and more teens that they are high-pitched hearing is already gone.
                                                    Designer headphones is a big business high-ticket must-haves,but for hearing loss,earbuds may be the most destructive,some context,using devices can produce about 115 decibels of sound,earbuds at 5 decibels more,85 decibels is where hearing damage start.power tools 98 decibels.a lown mower,one hundred and seven ,a jet taking off 100 feet away,140,so how loud is the music,I went out with a decibel metre.

Here is what happens inside your ears,when strong sound vibrations hit your ear

This post was generated by put listening repetition system,  Check the original dictation thread!

[Homework]【整理】2013-03-15&03-17 高分贝耳机——听力杀手

The story affecting every American family.Here's the question,are your ear phones ruining your hearing,right now,tonight are millions and millions of Americans walking round listening to music but ensuring they will not be able to hear as well in the year ahead,tonight the mayor of New York says it's time to send out an alarm,and ABC's chief medical editor Doctor Richerd is stepping in.30 years ago,people in their 20s could all hear the rustle of leaves,the drip of raindrop,the babble of children,now for one in five of them,those sound have gone forever.
Normally people would come in there 50s and 60s with hearing loss,and now that had shifted into people in their 30s and 40s,in fact,Doctor Gerge has to tell more and more teens,their high-pitched hearing is already gone.
Disigner headphone is a big business,high-ticket must-haves.but for hearing loss,earbuds may be the most desturctive,some context,music devices can produce about 115 decibels of sound,earbuds had 5 decibels more,85 decibels is where hearing damage starts,power tools 98 decibels,a lawn mower 107,a jet taking off 100 feet away,140.So how loud is the music,I went out with a decibel metre.
Here's what happened inside your ear,when strong sound vibration hit your ear,the problem deep inside the cochlea are fragile hear cells,they turn vibration into sound messages to the brain.Blast the more aloud sounds,they wither,if the loud sound is brief,they will recover,but if it is last too long or happens too often,they died,and they never grow back.
If you get to 100 decibels,I would limit that to about one hour a day.
My advice,never go higher than 3/4 of your top buyer,and a couple of hours is enough.

                                                   



This post was generated by put listening repetition system,  Check the original dictation thread!
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