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The Tooth Phone is a wireless audio communications device that, through bone resonance, will
allow humans to seamlessly communicate to anyone, at anytime, in any environment. People will
no longer have to wear uncomfortable speaker and microphone devices, nor will they have to worry
about crowded or high noise environments. Instead, the Tooth Phone provides a completely
transparent way of communicating, one that is free of head or ear-mounted systems,
enabling natural universal connectivity.
Using patented bone conduction technology, the Tooth Phone represents the first and only truly personal communication
system. Specifically, the Tooth Phone picks up individual bone resonances,
allowing sound to be transmitted solely from the user regardless of the environment.
Similarly, only the user hears speech, as bone resonances do not leak and
cannot be heard by anyone else.
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When you speak normally, your skull bones vibrate a very small amount (less than 0.1 micron -bone conduction sound). Because it is attached to a rigid object, your tooth, the Tooth Phone is capable of detecting these tiny movements and converting them into electronic signals. Unlike traditional microphone technology, the Tooth Phone does not respond to surrounding noise because the noise exists in the air, and the Tooth Phone does not respond to air conduction sounds - only bone conduction sounds. Also, your skull provides isolation (about 40 dB SPL) from surrounding (air) noise, and it takes very loud noise before your skull begins to vibrate.
To provide hearing, the reverse is occurs. The Tooth Phone receives a speech signal and vibrates. The vibrations are transmitted via the bone conduction pathway to the nerve in your inner ear. Unlike a typical headset, because the Tooth Phone does not block the air conduction pathway, your ears remain open for conversational speech and sound localization.
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(1) In September 2009 Audiodontics won a prestigious award from the National Institute of Deafness and Communication Disorders (NIDCD). The award is to fund development of the Tooth Phoneâ„¢ Auditory Device (TPAD). Clinical testing is on-going at the University of Maryland, Baltimore.
In October 2009, the Cleveland Clinic recognized the value of a non-surgical, tooth related device for the treatment of Single-sided deafness. See Link:
Cleveland Clinic Summit
Cleveland Clinic Innovations
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