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Bone conduction is one reason why a person's voice sounds different to them when it is recorded and played back. Because the skull conducts lower frequencies better than air, people perceive their own voices to be lower and fuller than others do, and a recording of one's own voice frequently sounds higher than one expects (see voice confrontation).
Magnetostriction headphones, sometimes sold under the label Bonephones, work by vibrating against the side of head, transmitting sound via bone conduction. This is particularly helpful in situations where the ears must be unobstructed, or for people who are deaf for reasons that do not affect the nervous apparatus of hearing .
Von Bekesy is credited with the discovery that at the level of the cochlea, phase shifted bone-conduction signals cancel out air conduction signals. Bone-conduction works because all of the bones of the skull are connected, including the temporal bone, which in turn stimulates the cochlea. Barany (1938) and Herzog & Krainz (1926) were some of ...
Transducers can be earphones, headphones, a bone oscillator, or sound field. It is preferable for the patient to be asleep. The high pass filter might be approximately 40 to 90 Hz and low pass filter might be between 320 and 720 Hz with typical filter slopes of 6 dB per octave.
The cartilage-conduction transducer is usable at the depth of the water 4m. The cartilage conduction transducer is more sanitary than earphones which have an ear peace filled by sebum. Since the cartilage conduction transducer does not insert in the external auditory canal, it does not cause external otitis and fungal external otitis.
Bone conduction headphones/sets transmit sound to the inner ear primarily through the bones of the skull, allowing the hearer to perceive audio content without blocking the ear canal. Bone conduction transmission occurs constantly as sound waves vibrate bone, specifically the bones in the skull, although it is hard for the average individual to ...
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