How to choose the right hearing aid for you

After more people have met the basic needs of eating, wearing, living, and traveling, the pursuit of quality of life and taste is also growing. In the past, the traditional understanding that "the deafness is not fatal and the deafness is not a disease" has long been abandoned by the contemporary society. "Being audible and listening clearly" has become a good wish for countless hearing impaired patients! So how do you choose a hearing aid that suits you and let yourself hear the world's moving voice again? I think we should know the following:

1. How Hearing Aids Work

Although there are many types of hearing aids. But the core working principle is the same.

The first part is a microphone (microphone), which is responsible for converting the input acoustic signal into an electrical signal in an analog manner;

The second part is the input signal processor, which is responsible for converting the analog signal into a digital signal;

The third part of the shunt device is responsible for dividing the digital signal into several signal processing channels;

The fourth part is the signal processing device, which has the ability to process signals independently, flexibly and reasonably;

The fifth part is the integrated device, which is responsible for combining the signals from different channels into two parts: high and low frequency;

The sixth part combines the high and low frequency signals completed by the previous stage and outputs them in digital form;

The seventh part is the receiver, which is responsible for reducing the electrical signal to an acoustic signal.

2. Types Of Hearing Aids

Behind the ear

The behind-the-ear hearing aid is one of two major categories of hearing aids - behind the ear (BTE) and in the ear (ITE). These two categories are characterized by the position of the hearing aid. The BTE hearing aid consists of a box that hangs behind the auricle. The case is attached to the tip of the earbud or dome by a conventional tube, thin tube or wire. The tube or wire extends from the upper abdomen of the auricle to the outer ear, with the ear or dome tip inserted into the external auditory canal. The enclosure contains electronics, controls, batteries and a microphone. The speaker or receiver can be placed in the housing (conventional BTE) or in the ear tip or dome tip (in the ear canal receiver or RIC). The RIC style of BTE hearing aids is usually smaller than traditional BTE and is more commonly used by more active people.

BTEs usually provide more output and can therefore indicate a greater degree of hearing loss. However, BTE is very versatile and can be used for almost any type of hearing loss. BTEs come in a variety of sizes, from small “mini BTE” to large ultra-high power devices. The size usually depends on the desired output level, the location of the receiver and the presence of telecoil. BTEs are durable, easy to service, and often have easy-to-operate controls and battery doors. BTE can also be easily connected to auxiliary listening devices such as FM systems and inductive loops. BTE is usually worn by children who need a durable hearing aid.

At the ear

An ear assist device (ITE) device is mounted in the outer ear bowl (referred to as the outer ear). Larger, these are easier to insert and can accommodate additional features. They are sometimes visible when standing face to face with someone. ITE hearing aids are custom made to fit everyone's ears. They can be used for mild to some severe hearing loss. Feedback, screaming/howling caused by sound (especially high frequency sound) leakage and re-amplification may be a problem of severe hearing loss. Some modern circuits can provide feedback adjustments or cancellations to help resolve this issue. Ventilation can also cause feedback. Vents are primarily used to provide pressure equalization. However, different vent types and sizes can be used to influence and prevent feedback. Traditionally, ITE has not been recommended for young children because their health is not as easy to modify as BTE's ear molds, so as children grow, they must be replaced frequently. However, some new ITEs are made from silicone materials that reduce the need for expensive alternatives. The ITE hearing aid can be wirelessly connected to an FM system, such as a body-worn FM receiver with an inductive neck ring that inductively transmits audio signals from the FM transmitter to the telecoil in the hearing instrument.

Mini pipe (MIC) or full pipe (CIC) auxiliary equipment is usually not visible unless the observer looks directly at the wearer's ear. These aids are used for mild to moderate severe losses. For people with good low frequency hearing, CIC is generally not recommended because the occlusion effect is more pronounced. The hearing aid completely in the ear canal is deep in the ear. Almost invisible. Small size, no directional microphone, short battery life, battery and controller can be difficult to manage. Its position in the ear prevents wind noise and makes it easier to use a phone without feedback. [The hearing aid in the ear canal is placed deep in the ear canal. They are almost invisible. [14] Larger versions of these can have directional microphones. In the canal, they are less likely to cause a blockage. These models are easier to operate than smaller full in-tube models, but still have quite small drawbacks.

In-the-ear hearing aids are generally more expensive than behind-the-ear hearing aids that have the same function because they are custom mounted on the patient's ear. In the fitting, the audiologist physically prints the mold (mold) on the ear. The mold is scanned by a specialized CAD system to produce a 3D model of the outer ear. Insert the snorkel during modeling. A digitally modeled shell is printed using rapid prototyping techniques such as stereolithography. Finally, after the quality check, the auxiliary device is assembled and transported to the audiologist.

Invisible ear canal hearing aid

The invisible hearing aid in the Canal Hearing Aid (IIC) fits perfectly inside the ear canal and has virtually no visible hearing aid traces. This is because it is more suitable for canals than other types, so even if you look directly at the ear bowl (outer ear) you will not see it. Since the outer casing of the aid is customized for the individual ear canal after the mold is removed, a comfortable fit is achieved. The invisible hearing aid type uses a vent and its deep placement in the ear canal to provide a more natural listening experience. Unlike other types of hearing aids, most of the ears are not blocked (occluded) by large plastic enclosures with the aid of IIC. This means that the sound can be collected more naturally through the shape of the ear and can spread down into the ear canal like unhelpful hearing. Depending on their size, some models allow the wearer to use the mobile phone as a remote control to change the memory and volume settings instead of taking the IIC out to perform this operation. The IIC type is best for middle-aged users, but not for older people.

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3. Special Function Hearing Aids

Rechargeable function

The advantage of this type of hearing aid is that it does not require frequent battery replacement. It can be charged for recycling. Saves on the cost of buying a battery.

Bluetooth function

Hearing aids are increasingly being able to wirelessly connect to certain electronic devices such as cell phones, music players and televisions. You may need to use an intermediate device to answer calls or other signals and send them to a hearing aid, and so on. Very convenient and widely popular with consumers.

Noise reduction

Noise reduction, all hearing aids have a certain degree of noise reduction. The amount of noise reduction varies.

Directional microphone. They align on the hearing aid to improve the sound coming from your front and reduce the sound coming from behind you. Some hearing aids can focus in one direction. Directional microphones improve your hearing in environments with a lot of background noise.

Remote control function

Some hearing aids are equipped with a remote control so you don't have to touch the hearing aid to adjust the function.

Direct audio input function

This feature allows you to insert audio from your TV, computer or music device with a power cord.

Environmental noise control

Some hearing aids provide noise cancellation and help prevent background noise. Some also offer reduced wind noise.

Synchronization function

For individuals with two hearing aids, the auxiliary device can be programmed to work together so that the adjustment of the hearing aid (volume control or program change) on one ear will also be performed on the other auxiliary device, allowing for a simpler control.

4. Preparations At The Time Of Purchase

It is important to choose a formal, professional chain hearing aid fitting center to detect hearing impairment.

Consult a hearing specialist to choose the right type. Experts will suggest a suitable type of hearing aid based on the information you provide.

Ask how much time during the trial period. There is a time to try out when buying a hearing aid. During this time you will be familiar with whether the hearing aid you purchased is right for you. Have the seller sell the trial fee in writing. Whether this amount is included in the final cost of the hearing aid, and how much it can be refunded if you return the hearing aid during the trial period.

Check the warranty. Look at those problems that are within the scope of repairs.

Costs, the cost of hearing aids vary widely - from about $2,000 to a few thousand dollars. Professional fees, remote controls, hearing aid accessories and other hearing aid options may require additional fees. Whether these are beyond your budget. You have to understand

5. Finally

Follow the steps above to choose the right hearing aid for you. But the hearing aid is a sophisticated electronic medical device. You also need Maintenance And Daily Protection. This way you can use hearing aids better. I hope your life will get better and better. Let the hearing aid bring convenience to your life.

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