It can be said that most people will do the same thing when they face the user’s “blocking, stuffy”: reduce the low frequency gain.

But there are still some users who tell you, still boring! Or don’t tell you that you are bored, you don’t wear hearing aids directly when you go home. I will even tell you that it is not as good as it was just right, and you are confused.

The professional evaluation of your users has naturally declined.

Today, I shared a case where the user came to me for the first time. The hearing aid was distributed in other places. The problem with complaining is that “the hearing aid is not worth wearing after the recent debugging.

1, check the external auditory canal:

Whether you are a hearing aid user or a fitter, I would like to remind you that if you do not check the external auditory canal before debugging or fitting the hearing aid, it will be a valuable time for you and the user! (About the impact of 耵聍 on inspection and debugging, please write it again.) Check that there is not much sputum in the external auditory canal of this user.

2, pure tone audiometry is as follows:

Pure tone hearing test report

3, debugging

By convention, look at the usage record first, and the user’s usage record is 0 hours per day, which basically matches what he said. The reason for not using it must be asked. His reason is that it is better to wear it than to wear it.

Introduce the type of hearing aid: Unicorn stride 500 ear canal hearing aid, from the perspective of hearing loss and characteristics, because the hearing loss is not heavy, the low frequency is quite good, so this user will be more likely to have a blockage and self-listening in the initial stage of wearing a hearing aid. The overshoot is clearly the plugging effect that represents the reaction. Obviously, the ear canal hearing aid is not the most suitable shape. If I come to choose him, the first consideration is the RIC machine that is more comfortable to wear. While getting the right compensation, the user can feel more comfortable wearing. The principle is still a chance to talk more.

We can see that the actual output curve of the low-frequency and low-frequency is far lower than the target curve. It can be seen from the values ​​on the frequency response diagram that the mid-low frequency sound is at a level lower than the 60dB SPL after being amplified by the hearing aid. From the perspective of auditory perception, the intensity of the sound reaching the ear after being processed by the hearing aid is not as great as that of the hearing aid. This is also the crux of the user’s feeling that wearing it is better than not wearing it.

The processing is also very simple, and it is better to re-match the hearing directly. After the compensation comes up, the user can hear it clearly. Of course, the problem he still has is still a sense of blockage. His own voice is a bit big, and it is better to increase the low-frequency compression ratio a little.

For moderate to moderate hearing loss, the plugging effect is a difficult problem that needs to be overcome by itself, but it is by no means a solution by the fitter to debug 100%. If you wear the machine at the beginning, the feeling of blockage is a little bit, and your voice is a bit too big and not too uncomfortable. It is better to adapt the ear directly to the improvement of the auditory acceptance of sound and discrimination. Of course, it is best to listen to the advice of the time-matching apprentice and choose a more suitable hearing aid: a mini open hearing aid.

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Steven Jackson

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