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Cranking The Volume On Your Ipod Or Mp3 Player Can Damage Hearing
By Lee Blue
Kids have always loved listening to their favorite music, and the louder the better – much to their parents’ dismay. In the 1980s, the portable tape recorder with headphones – which came to be known as the “Walkman” – enabled teenagers to listen to their as loud as they wanted, anywhere they wanted, without disturbing anyone around them.

But the more modern rendition of the Walkman – portable MP3 Players and iPods – pose a major threat to our children’s hearing health, and to ours.

The problem is a combination of the technology of portable digital devices that creates a non-buffered crystal clear sound, and the type of headphones typically used with them, which do not have a buffer either. In December 2005, Dean Garstecki, an audiologist and professor at Northwestern University reported that more and more young people were being diagnosed with the types of hearing loss typically found in older adults. He attributed this trend to the “earbud” type headphones that usually accompany iPod and MP3 Players.

With the earbud headphones, the sound frequencies are not buffered as they are with the more traditional, ear cup-style headsets. Newsweek Magazine recently reported that researchers at the House Ear Institute found that listeners can unfortunately increase the volume of today’s portable digital devices without the “signal distortion that occurs with traditional analog audio.” The older-model headphones that were popular just 15 to 20 years ago – that have ear cups outside of the ears – had that distortion when the volume was turned up, which functioned as a much-needed buffer to protect our hearing. Today’s technology does not provide that buffer – the earpiece is placed in the ear, not outside of it, and the digital devices do not create that distortion, no matter how high the volume.

In addition, people often listen to these devices while they are on the go, and have a tendency to crank the volume in an attempt to drown outside noise, further posing a risk to our hearing. Using the earbud style headphones during activities such as exercise, for example, puts the user at a greater risk. During exercise, blood, which can act as a buffer, is diverted from the ears to other parts of the body – so our already vulnerable hearing is in even more jeopardy.

Headwize reports that a study conducted on listeners using headphones revealed that while indoors with no background noise, the participants were comfortable with their at 69 decibels. Outdoors, where the background noise was recorded

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