The working principle of hearing aid in ear

< a href = "http://www.sqhearing.com/tlkp/369.html" target = "blank" > inner ear hearing aid < / a > according to its shape characteristics, it can be divided into three types: ear cavity type (abbreviated as ITE), ear canal type (abbreviated as ITC or CC), and invisible deep ear canal type (abbreviated as CIC). But because they are all worn in the ear, they are also referred to as inner ear hearing aids.

Features of inner ear hearing aids: suitable for personal ears; easy to wear or remove hearing aids; full use of the sound collection function of the outer ear; comfortable to wear; relatively unobtrusive; can use the phone in a normal way: you can wear it when you sleep; can customize the inner ear hearing aids according to your hearing needs.

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Inner ear hearing aid may be the most convenient and comfortable type of hearing aid. What’s more, the effect it can achieve in sound can really improve the user’s listening ability. When we communicate with people, the biggest problem is not that we can’t hear, but that we can’t understand the meaning of the voice though we hear it. We often think that a word contains only one sound. In fact, each word is made up of several different sounds. Now, take the word “three” as an example: the “s” in San sound is a high-frequency sound. If you hear the “s” sound, you know that the word you hear is “three”, not “an”. Therefore, the high-frequency sound in the sound is the key to our understanding of meaning. 60% of the energy contained in the speech is concentrated below 500 Hz (low frequency), that is, on the vowel (such as an, en, IA ••); 35% of the energy is concentrated between 500 Hz and 1000 Hz (medium frequency); the remaining very little energy exists in the high frequency sound closely related to the speech understanding. Generally speaking, this feature of speech is not a problem for people with normal hearing, but not for people with hearing impairment. When hearing loss mainly occurs in the high-frequency band, because the sound energy in the high-frequency speech is very weak, the problem is more complex. Any kind of hearing aid can not restore the damaged auditory system to normal.

The hearing aid just amplifies the sound so that you can hear it easily. The difference between the inner ear hearing aid and the general hearing aid is that the inner ear hearing aid is in a more favorable focus – the ear canal mouth, receiving sound, so it can achieve more effective sound reinforcement effect. Our outer ear can concentrate the weak high frequency speech near the ear canal to strengthen these extremely important sounds. When the hearing aid is worn outside the ear, a long tube is needed to connect the ear, which will produce resonance. As a result of resonance, the medium frequency sound is often enhanced unnaturally. The enhanced medium frequency sound can easily cover the weak high frequency sound. In contrast, the inner ear hearing aid only needs a very short tube, so it can effectively reduce the shielding effect. Compared with other types of hearing aids, another advantage of the inner ear hearing aids is the location of the microphone. Usually, the microphone transmits the voice together with the ambient noise to the amplifier. Most of the noise in the environment is low frequency. If the microphone receives low-frequency noise and important high-frequency voice at the same time, the loud noise will cover the weak voice. The microphone position of the ear type hearing aid is designed on the ear crossing, which is the focus of the high-frequency voice. The disadvantage of the high-frequency voice being covered can be eliminated. The inner ear hearing aid has many significant advantages. It is less noticeable in appearance. At the same time, users can be engaged in various activities without restrictions on movement.

The advantages of the inner ear hearing aid are very close to its appearance. The smaller the shape, the more obvious the advantages. Therefore, it is the best to use the invisible deep ear canal hearing aid, followed by the ear canal hearing aid and the inner ear hearing aid.

Jinghao hearing aid reminder: hearing aid wearing requires professional “matching”, so it is very important to choose a professional hearing aid matching center and a hearing aid tester! If you have any hearing problems, you can call Jinghao for consultation, or come to the matching center for experience. Hearing aid free consultation Tel.: + 86-18566295705

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