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Human Ultrasonic Hearing

David & Sissy Coffin Coffin at worldnet.att.net
Sun Jul 21 08:37:27 EST 1996

I would be interested in learning more about this technology, as would
others, I assume.  Please post more information to the group.

David J. Coffin, M.A., CCC-A, FAAA
Birmingham Otology
Birmingham, Alabama


At 01:52 7/21/96 +0000, CSG wrote:
>Scientists since 1954 have known of the capability of humans to hear 
>ultrasonic frequencies (23,000 - 100,000Hz.).  The only problems has 
>been : 1)  Up-shifting audio sound cleanly to ultrasound (for speech 
>comprensibility); and 2)delivering the ultrasound to the body.
>I have spent the last 5 years developing a portable device which 
>addresses and handles these problems.  The technology has been tested on 
>severely and profoundly deaf adults and children (as well as normal 
>hearing individuals) with excellent results.  Conversational speech as 
>well as music is easily heard and understood.  This is a noninvasive 
>approach and thus offers a viable alternative to the cochlea implant 
>I thought it was time to let the news out.
>Information/details availble on request:
>hearus at flash.net

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