Hearing aid
Hearing aids are electronic instruments worn in or around the ear that compensate for hearing losses by amplifying sound. Hearing aids receive and process acoustic sound to stimulate components of the auditory system to cause the sensation of hearing in a patient. The electronic components used in hearing aids generally include a microphone for receiving the sound and converting the sound to an electrical signal, an electronic circuit for amplifying and processing the signal produced by the microphone, a speaker, also known as a receiver, for converting the processed signals into sound energy and a battery for providing operational power to the hearing aid. In a hearing aid, acoustic input signals are acquired by a microphone, amplified in an amplification device, and the amplified signals are supplied to a speaker. The sound emitted from the speaker is partially fed back to the microphone, resulting in noticeable interference. Many types of hearing aids are known and have been developed to assist people with hearing loss. Examples of hearing aid types currently available include behind the ear (BTE), in the ear (ITE), in the canal (ITC), and completely in the canal (CIC) hearing aids. A hearing aid comprises an ear mold having therein the necessary electronics for amplifying and otherwise conditioning sound to compensate for a user's hearing loss. The ear mold can be generally made of plastic, and is specially designed and molded to fill the ear of the person who is to use the hearing aid Hearing aids often comprise a connector with a set of closely spaced electrical terminals operatively connected to one or more internal hearing aid components. Hearing aids have a battery compartment for placement of a battery power source for operating the hearing aid. Metal-air cells, such as zinc-air cells, are commonly used to power hearing aids because of their stable output voltage during their operating period. The performance of a hearing aid significantly depends upon the design of the microphone pickup. The microphone is a substantial part of the hearing aid. Miniature microphones used in hearing aids convert acoustical sound waves into an audio signal which is processed and sent to a receiver of the hearing aid. The receiver then converts the processed signal to acoustical sound waves that is broadcast towards the eardrum. A microphone generally a moveable diaphragm and a charged backplate for converting the sound waves into an audio signal. The diaphragm divides the inner volume of the microphone into a front volume and a rear volume. Sound waves enter the front volume of the microphone via a sound inlet.
Hearing aid product listings
Manan hearing aids are designed to offer superior performance for a majority of patients in a wide range of listening environments. With advanced DSP algorithms, Manan hearing aids can help compensate for lost hearing sensitivity and reduced dynamic range.
Digital hearing aid
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