Reading the page on this device, I was a little suprised at the boast the this device was discovered in 1996 by folks at UV. That being said because I was using just such a device several years erilier, and certainly not in a labratory. The US Army has a set of headphones/mike that are known (by those that know them) as "bone phones" They are vibrating headphones. No outward sound. But touch them to any bone in your head, you hear crystal clear....even at intense 'volumes" and in very loud environments. And they dont block or interfere with the audio waves of the rest of the world. Interestingly e-nuff, many people do not need to touch the device to their head. I can, for instance, touch it to my elbo and hear the 'sound' as clear as if it were on my head. I know of a select few people who can placwe the object on their knee, even, and still hear the sound just as clear. But most folks need to place it on their head. The devices listed for about $900 ea to the army (only those that ESSENTIALLY needed to hear in aweful enviroments. And as a benifit, you CANT blow out your eardrums out. I have never tyied to get some of my own, I dont care much for intrutuions into my mind. Great device, though. Thuely awesome. > > Alternatively, you can use a parallel hearing system that most humans > seem to have the ability to train. It uses nerve conduction to transmit > sounds to an inner ear organ called the saccule, which lower orders, > such as reptiles or fish, use to hear through the skin. Humans use > the saccule for balance but retain the ability to hear through it. > > Information on a device that stimulates the saccule via ultrasonic audio > can be found at: > > http://www.flantech.com/neuropho.htm > > In my experience with the NeuroPhone, I find that I can hear higher > frequency sounds (>10KHz) very well, with the lower frequencies > becoming progressively "muddy". I don't plan on using it to hear speech, > so I'll probably still have a single acoustic speaker mounted near one > of my ears. This should suffice, since you don't need terribly high > fidelity for speech (and stereo is definitely overkill, IMO). > > sg > > >
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