A hearing aid is a small electronic device that is placed either inside the ear or behind the ear. This device amplifies the sound. Hearing aids have three parts: microphone, receiver and amplifier. The sound enters the microphone of the hearing aid and is converted into an electrical signal. This electrical signal enters the amplifier and is amplified, and this amplified sound is sent to the receiver, where the electrical signal is converted back into an audio signal. In addition to being much smaller and more powerful, the new hearing aids are very different from the hearing aids of ten years ago. The possibility of digital processing in new hearing aids has provided the possibility of very complex processing in hearing aids, which makes the sound to be distinguished from the background speech with great clarity.

Buying a hearing aid is a sensitive and complex process and requires careful evaluations of the patient’s hearing status as well as the patient’s economic, personality and social factors. Therefore, respected patients should note that in order to purchase and purchase hearing aids, it is necessary to refer to audiometry clinics and carry out detailed evaluations, so that appropriate hearing aids are prescribed for them.

Some key points about buying hearing aids are:

* Performing audiometric evaluations and determining the degree and type of hearing loss in the first stage
* Accurate and complete advice on choosing the type and model of hearing aids according to the patient’s hearing condition
* Prescribing two hearing aids for both ears in cases of hearing loss of the patient should be two hearing aids
* Accurate and correct molding of the patient’s ear to make a hearing aid mold behind the ear or inside the ear* Adjusting the hearing aid made on the patient’s ear for the first session
* Next visit in the next 1 to 2 months for the secondary adjustment of the hearing aid
* Periodic services and adjustments of hearing aids by an audiologist

Using hearing aids requires a little patience. Your ears and brain should get used to hearing aid sound. Therefore, it is better to wear hearing aids on your ears for a long time. Learn how to use the hearing aid in the presence of your audiologist and put on and take off the left and right hearing aid. Be careful to choose the most comfortable setting for your hearing and cooperate with your hearing specialist in adjusting the hearing aid.

During the use of hearing aids, you may have the following problems:

• You may feel that the sound is loud or soft.
• You may feel that your own voice or those around you are ringing in your ears. In many cases, after a period of time, you will get used to the serious sound and you will not have the previous sensitivity.
• Your hearing aid may whistle. In this situation, the first possibility is the accumulation of earwax in the ear canal or the entrance of your hearing aid is blocked with water. Try cleaning your hearing aids.