What is the hearing amplifier?
The auditory amplifier is a device designed to reduce the effect of hearing loss by amplifying sounds. Most types of hearing loss cannot be restored or surgical. Sound reinforcement devices can make life easier for those who still have partial hearing. The most common type of hearing amplifier is the hearing aid. Hearing amplifiers range from simple cones to sophisticated technology that can be surgically implanted in the user's head. It worked in the same way as the natural ear. The wide end gathered the surrounding sound waves and directed them to the narrow end that the user held on his ear. This non -technical device had at least limited usefulness and is now best known for its occasional appearance in cartoons and old movies, usually used by an extremely older person.
Mechanical and electronic amplifiers were developed with a 20th century headphone. The first device used technology developed for sound recording. To the ear was attachedENA box containing amplifying device with a wire or cord. The box was mounted as a user or elsewhere and was generally visible to the observer. As a result, the hearing amplifier was attracted to those who were on their hearing loss, long considered a sign of progress.
Advances in technology and miniaturization have made it possible to create a much more aesthetically pleasant hearing amplifier. Some versions of the device were hidden in the glasses or located deep inside the ear canal. The main disadvantage of such small auditory aids is feedback. Because the device contains a microphone and a speaker in close proximity, it can amplify its own sounds, resulting in unpleasant whistling. The top modern auditory aids are designed to reduce or eliminate feedback.
Advanced auditory aids are designed to be tailored to fit their users, but DThis is very expensive; Most state and private health coverage is only available to those who have a catastrophic or almost total hearing loss. The energy sources are also a problem because small hearing aid batteries often need replacement. An alternative for some users is a surgically implanted device such as listening to the bone. This intensifies and controls the sound made by the skeletal system itself. The cochlear implant, another surgical device that transmits sound waves to the auditory nerve as electronic signals is not a technically hearing amplifier.