What is a hearing aid

Hearing aid is actually a kind of auxiliary tool, hearing aid is composed of microphone, amplifier, receiver, volume regulator, audio regulation, inductor, battery. Simply put, the principle of the hearing aid is that the sound signal, after the microphone conversion, into electrical signals, and then through the amplifier to amplify the electrical signals, and then finally after the amplification of the electrical signals into the original acoustic signals transmitted to the human ear. This allows the patient to hear sounds that she would not be able to hear if she were not wearing a hearing aid, and to communicate better verbally.

Hearing aids are divided into two types, one is the economic type is the collection of sound 1:1 amplification into the ear, so that you can not hear the sound can be heard, at the same time you originally hear the sound or you think that the sound of a particularly large sound is also amplified (such as the sound of the car to give you the same multiplier amplification, which will be unbearable for your ears to bear the hard way), so this type of hearing aids are suitable for the requirements of the quality of the not so high care of the The user is not a big fan of the quality.

Another type of hearing aid is the digital programmable hearing aid, which is selected according to the individual hearing examination, and it will be fitted according to your hearing condition, and it will automatically compress and reduce the noise after wearing the small sound, and it will automatically compress and reduce the noise after wearing the big sound you feel noisy, so it's smarter and more comfortable to wear, and you can hear the sound is more real and natural, so it's important to select the right hearing aid for yourself.