The sound sounds very weak, even if you turn up the volume, you can’t solve it.
Method 1: Check the battery
According to the time of 8 hours per day, the battery life is generally 7-15 days.
If the use time is too long, the output of the hearing aid will be weak. In this case, consider replacing the hearing aid battery.
When tearing off the paper on the surface of the new battery, the adhesive may remain on the battery and affect the contact. In this case, use the fingernail to gently scrape the surface of the battery and wait for 2-3 seconds before loading the battery door.
Method 2: Check the anti-ear wax net cover (for custom machine)
The earmuff prevention device of the customized machine is easily blocked by the sputum, so that the sound emitted in the hearing aid is hindered.
If the ear-proof net cover is taken out and the sound is not abnormal, it indicates that the net cover is blocked.
Regular care and maintenance are important for the moisture and anti-scaling of hearing aids, and sputum clogging is an important reason for the greatly increased rate of hearing aid repair.
Method 3: Check the damper (for the back of the ear)
The damper is typically placed in the ear hook of the behind-the-ear hearing aid to smooth the formants and soften the sound quality heard by the hearing aid user.
The damper in the ear hook is easily blocked by cockroaches and oily secretions, so that the sound is blocked and the ear hook is removed. If the hearing aid sounds abnormal, it can be used normally after the ear hook is replaced.
The sound that I heard was intermittent, sometimes strange, and sometimes returned to normal.
Method 1: Check the battery
The life of the battery not only affects the sound level of the hearing aid, but also affects the sound quality.
The weak power will make the hearing aid energy supply unbalanced, resulting in intermittent volume output.
Therefore, regular battery replacement and no use of used batteries are necessary for the maintenance of hearing aids.
Method 2: Check the maximum output in the debug software
For some hearing aids that use “sharp clipping” for output limitation, if the maximum output value is reduced blindly, the hearing aid will have more peak clipping and obvious distortion, which will make some hearing aid users unable to hear louder sounds or “sometimes”. I feel the sound, sometimes I can’t hear the sound.”
Howling is a key factor affecting the wearability of hearing aid users, and it is also a difficult problem encountered by the fitter during debugging and fitting.
In fact, howling can be divided into external whistle and internal whistle. Hearing aid users and fitters can handle it through correct judgment methods, thus improving the satisfaction of hearing aids.
Method 1: Check the ear mold
For hearing aid users with heavier hearing loss, the fitter often customizes the ear mold to increase the tightness of the hearing aid.
However, if the ear sample is not properly adapted to match the ear canal of the hearing aid user, the sound will leak from the gap between the ear canal and the ear mold, resulting in howling.
At this time, the ear mold and the hearing aid can be completely worn on the ear of the hearing aid user. If the ear mold is plugged with a finger and the hearing aid no longer produces a howling, it can be judged that the cause of the howling is from the ear mold.
Method 2: Check the ear hooks (for the back of the ear)At present, most of the ear hooks used in the market are made of plastic material. Long-term use may cause the joint of the ear hook and the hearing aid body to rupture, resulting in sound leakage and whistling.
Replace a new ear hook and wear a hearing aid for the user. If the hearing aid is no longer whistling, it can be judged that the cause of the howling is from the ear hook.
Method 3: Check Vents
Vents are often used to improve the wearing comfort of hearing aid users and to solve the plugging effect.
However, if the size of the vent hole does not correspond to the hearing loss of the hearing aid user, whistling may occur due to excessive sound leakage.
The fitter should correctly determine whether the user needs the vent hole and the size of the vent hole according to the hearing loss of the hearing aid user, so as to avoid whistling caused by improper vent hole.
Method 4: Check the microphone or receiver
After excluding all external whistle causes, if the hearing aid still produces howling, then this whistle is called inside the hearing aid.
The howling is from the microphone: Block the hearing port of the hearing aid with your fingers. If the hearing aid continues to whistle, you can judge that the internal howling is from the microphone.
The howling is from the receiver: use your fingers to block the sound outlet of the hearing aid. If the hearing aid continues to whistle, you can judge that the internal howling is from the receiver.
The internal howling caused by the microphone or receiver falling off needs to be sent back to the hearing aid manufacturer.
Method 5: Check for high frequency gain
When hearing aid users have high frequency hearing loss, the fitter often increases the high frequency gain to compensate for the hearing loss of the user’s high frequency portion.
However, more high frequency gain will cause the receiver to send.
For hearing aid users with high frequency hearing loss, the fitter may consider using a higher-powered hearing aid or turning on the “frequency shifting” function. As the time of use increases, various hearing aid “small faults” will follow. It happened.
In fact, the appearance of “small faults” does not mean that the hearing aid is broken. As long as the hearing aid user or the fitter can correctly determine the problem and find a suitable solution, it can “prescribe the right medicine” and solve the problem quickly to improve the user’s wearing. Hearing aid satisfaction.
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