The reasons for the selection of hearing aids

When users with bilateral hearing loss are encountered, professional hearing aid testers will advise users to wear hearing aids with both ears, because wearing hearing aids with both ears has more advantages than wearing hearing aids with one ear.

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1 ~ improve the positioning ability of sound source

When the sound wave propagates from different directions to the ears, there will be different phase difference, time difference and intensity difference. The brain uses the tiny difference between the two ears to determine the sound direction. When only one ear receives the signal, this function cannot be realized.

2 ~ prevent projection effect

When the sound passes from one side to the other ear, it will pass through the head block, which will cause the sound attenuation, especially the high frequency part (& gt; 1500hz) attenuation up to 10-16db. There is no problem of head block when hearing with both ears.

3 ~ better noise suppression

The auditory system is a good noise reduction system. If the signal-to-noise ratio of the signal received by both ears is large or small, the center will tend to analyze the ears with high signal-to-noise ratio, which can reduce the impact of noise on speech understanding; at the same time, the auditory system will generate an internal signal after integrating the waveforms from both cochlea, and the signal-to-noise ratio of the signal is higher than that of the single ear.

4 ~ to avoid delayed hearing deprivation

If symmetrical hearing loss patients only wear hearing aids in one ear, the ability of speech recognition without hearing aids will gradually decline in the next few years, that is, we often say delayed hearing deprivation. Wearing both ears can ensure that both ears have sound stimulation, which can better avoid the effect of hearing deprivation.

5 ~ suppress tinnitus

The use of hearing aids can mask or even suppress tinnitus. Tinnitus is usually bilateral, so wearing hearing aids on both ears can better mask tinnitus. Intention study shows that 66% of tinnitus patients report that bilateral hearing aids can weaken tinnitus, and 13% of them report that unilateral hearing aids are effective.

6-binaural integration effect

The threshold value of binaural listening is 3 dB higher than that of single listening. This can make the hearing aid achieve the same effect without opening too much, and ensure that the hearing aid has better sound quality in the unsaturated output state.

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