The headphone of conductivity hearing aids

Published:2011/6/10 3:37:00 Author:Seven | Keyword: conductivity hearing aids | From:SeekIC

Generally, the headphones of hearing aids are put on the ears, so to most of the deaf, the devices are useless. Here, this headphone is hold in the mouth, and the the sound spreads along the teeth(or in the bone conduction way), which makes the ill acquire sounds again. Construction Principles Sound waves spread to the eardrum and the ear bone through the external acoustic meatus, and then stimulate the auditory sensor in the cochlear. This conduction method is called air conduction . Besides, wave quakes can reach the internal ear through the head bones(such as the mastoid process and the tooth).



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