bone conduction


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Related to bone conduction: bone conduction hearing aid

bone conduction

[′bōn kən′dək·shən]
(biophysics)
Transmission of sound vibrations to the internal ear via the bones of the skull.

bone conduction

Transmitting sound via the bones in the skull to the inner ear. Bone conduction speakers rest against the side of the head near the ears, but not in them. Dating back to the 1920s, bone conduction has been used for hearing aids and is still used for people who cannot tolerate a device inserted in their ears.

Why You Think You Sound Different
When you speak, you hear your voice from your ears as well as the bone conduction in your head, which is lower pitched. When you hear your recorded voice, there is no bone conduction, and you sound higher pitched. See Bluetooth headset and Google Glass.


Bone Conduction in a Hat
A pair of bone conduction speakers (top) are sewn into every Cynaps hat phone (bottom), allowing it to be put on and taken off like any other baseball cap. See Bluetooth headset.


Bone Conduction in a Hat
A pair of bone conduction speakers (top) are sewn into every Cynaps hat phone (bottom), allowing it to be put on and taken off like any other baseball cap. See Bluetooth headset.







Bone Conduction in the Pool
In order to swim laps to his favorite music, this man is wearing a Finis waterproof MP3 player that uses bone conduction speakers (one unit is on each side of his head).







Through the Head
Instead of sound waves entering the outer ear (top), the sound vibrates the bones in the head and reaches the inner ear (bottom). (Image courtesy of Cynaps bone conduction products, www.maxvirtual.com)
References in periodicals archive ?
The effect of coupling force on bone conduction audiometry.
Means of air conduction and bone conduction (AC, BC) thresholds(dBHL) and pure tone average (PTA) obtained for male and female cases Frequency Male (N =19) (Hz) Air Bone conduction conduction thresholds thresholds Right ear Left ear Common 250 33.
It consists of two parts: An externally worn part, the audio processor, and an internal part, the bone conduction implant, which is surgically placed under the skin behind the ear.
Leveraging the company's unique signal processing technology, combined with off-the-shelf standard and bone conduction acoustic components, the HDClear[TM] chip improves voice call intelligibility.
It also comes with a bone conduction transducer, which directly transmits the audio to the user's ears, although there is an optional earpiece that can be connected using a 3.
The small microphone and FM transmitting unit is worn on the anacoustic ear and transmits the signal to the intraoral device, providing bone conduction to the good ear.
The idea would use bone conduction technology, a technique that transmits sound to the inner ear by passing vibrations through the skull, the BBC reported.
The Newcastle upon Tyne Hospitals NHS Foundation Trust is playing host to the Fourth International Symposium on Bone Conduction Hearing at the Sage Gateshead from June 6 to 8.
The bone conduction implant -- the Bonebridge -- was carried out by ear, nose and throat (ENT) specialists at Mafraq Hospital.
Some of the hearing tests may include a tuning fork, pure tone audiogram, and bone conduction hearing or a speech audiogram.
And then there were the technological solutions: hearing aids, FM systems, frequency transposition systems, cochlear implants, bone conduction devices.
February 2009: Cochlear BAS engages in the research and development, manufacturing and marketing of bone conduction hearing solutions.