Hearing Aids: Getting a Custom Fit
Hearing problems can be divided into 2 categories, namely conductive and “sensorineural”. An irregularity in the communication of sound to the outer or middle ear is called conductive, while an abnormality on the cochlear and auditory nerve is referred to as sensorineural. The former can be helped with the use of analog hearing aids which basically amplifies sound. The latter fixes the problem of sound processing, and use of digital hearing aids gets the job done.
Hearing aids that use analog technology amplifies sound by means of magnification of sound waves. The products in the market generally have them as conventional or programmable models. Conventional models feature adjustable volume control in its circuits, while programmable models allow for more flexibility. While they both have adjustable controls, the latter has more fine-tuning capabilities in terms of sound amplification.
Digital hearing aids have digital circuitry and provide crisp and clear sound. They are programmed based on your unique hearing loss. Its circuitry performs millions of complex calculations in a snap to enable digital processing of sound, canceling noise, feedback and distortion. It converts gathered sound into digital format, then processes it with digital technology and outputs it into your ear as analog sound. These instruments allow for greater flexibility and customization for patients’ different needs.
Hearing aids come in all shapes and sizes. They can be generally classified as BTE (Behind the Ear), ITE (In the Ear), ITC (In the Canal), and CIC (Completely in the Canal). BTE’s are made of custom-made ear molds that house the circuitry for amplification or processing of sound. They are mostly recommended for children for their durability.
ITE’s are instruments fitted just inside the outer ear. They are used in a wider range of hearing loss, usually on patients with mild to severe problems. ITC’s are fitted further into the external ear since they are smaller, and therefore almost appear concealed. They cater to patients with mild to severe hearing loss.
CIC’s, being the smallest of all hearing aids can appear to be unnoticeable and makes patients look like they are not wearing them at all. They only cater to select individuals with ear canals large enough for the instrument to be inserted and are not recommended for severe hearing problems.
It’s easy to be confused with so much information on hearing aids out there. So how do we get a custom-fit hearing instrument? The answer will always vary since different individuals have different degrees of hearing loss. A patient’s lifestyle and communication will also be factors.
One cannot base his decision by comparing the experience and review of others regarding their hearing aids. A certain model may be good for them, but that does not necessarily mean that it is good for you too. Only by taking hearing tests and proper evaluation can you truly specify what your needs are in order to choose the right device.
It is best to consult a doctor, audiologist or hearing instrument specialist before making any purchase of hearing aids. They are all qualified to help you out and give you advice about analog and digital hearing aids, and how they can make your life better.
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