| 摘要 |
A hearing aid is configured and dimensioned so as to be inserted past the cartilaginous part of the external auditory canal (external acoustic meatus) and into the bony part of the external auditory canal. The outer portion of the hearing aid fits snugly into the cartilaginous part of the external auditory canal; the microphone is located at the acoustic focus of the ear such that the natural sound and direction gathering functions of the human outer ear are fully utilized by the hearing aid. The inner portion of the hearing aid is articularly joined to the outer portion to enable the inner portion to be positioned past the sigmoid portion of the external auditory canal and forms a soft covered, elongated speaker which fits within part of the bony part of the external auditory canal, without causing discomfort to the human user. The hearing aid can be equipped with hand-held radio-controlled volume and tone controls (or a local, self-contained volume control), and it can also utilize a radio link to enable enhanced real-time signal processing of the incoming sound information via a remote processor. Additionally, the hearing aid can be equipped with an accelerometer to either cancel or enhance, depending on the human user's needs, conductive (through the bone) portions of sound information.
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