HOW TO IDENTIFY AND RESOLVE THE RELATED PROBLEMS OF A HEARING AID

After the hearing aid fitting is completed, what should be done if the user complains about some problems with the hearing aid? Here are some common problems and solutions for your reference.

 

Question 1：Feedback

There are many phenomena that can cause feedback in hearing aids, and it can occur at any stage during or after the hearing aid fitting. The key to solving feedback problems is to understand when feedback occurs. For example, the cause of feedback is different and is handled differently when the user first wears the hearing aid than when it occurs after a period of wear.

 

Checklist.

1. Ear wax in the microphone/receiver?
2. Excessive ear wax in the ear canal?
3. Microphone covered by the ear?
4. Jaw movement (chewing motion) causing poor sealing of the hearing aid?
5. Vent is too large?
6. Volume control always on maximum? In the case of hearing aids without volume control, is the gain of the hearing aid turned up to near maximum?
7. Is the peak of the response curve too high?

 

Solution A.

1. Use a special tool to remove earwax from the microphone/receiver
2. Refer the user to a medical facility to remove the earwax
3. Remake the cochlea (take a new ear mold)
4. adjust the size of the vents
5. add Helix lock or canal lock
6. activate high frequency potentiometer

 

Solution B.

1. add a longer receiver tube
2. tighten the loose parts
3. lengthen the length of the ear mold
4. lower the high frequency response of the hearing aid
5. increase the low-frequency gain
6. make the frequency response smoother

 

Question 2: Background Noise.

Be sure to have the user describe as best as possible what the so-called noise is like. It needs to be distinguished whether the noise is related to the hearing aid and circuitry or to low frequency amplification.

 

Checklist.

1. What type of noise?
2. Is it always there?
3. Does it occur intermittently?
4. Is it noise in the daily environment?
5. Does it sound like wind noise?
6.What is the response to the noise?

 

Solution.

1. Reduce the gain at low frequencies
2. Reduce/shorten the ventilation holes

 

Question 3: The Sense Of Ear-clogging

Users who experience the feeling of ear blockage may say that their sound is like being smothered in a bucket, and even their own voice is not pleasant to listen to. In one word, they feel “plugged”, which is usually related to the size of the ventilation holes and excessive low frequency amplification.

 

Solution A.

1. shorten the vent
2. enlarge the vent
3. activate the low-frequency potentiometer

 

Solution B.

1. lower the low frequency gain
2. increase the slope
3. increase the high frequency gain
4. how to really can not deal with the venting problem, you can consider redoing the ear mold to achieve a more appropriate venting

 

Question 4: Hearing aid does not work

 

Checklist.

1.Is the battery dead? Are the batteries properly inserted? Is the battery size correct?
2.Are there any loose parts in the hearing aid?
3.Are there wires or foreign objects blocking the battery compartment when it is closed?

 

Solution.

1. Test with a new battery
2. Clean the receiver, microphone
3. Adjust and tighten the battery contacts
4. Return to the factory for repair

resolve problems of a hearing aid

地点: 4RMC+3H Šebkovice, 捷克

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