How to tell if hearing aid is working: common problems with hearing aids, hearing aid sounds muffled and hearing aid interference problems.
Generally, if you can't receive external sound during using the hearing aid, there may be a problem with the hearing aid. The common problems are as follows:
1. If the hearing aid is blocked by something, especially the part inserted into the ear (cerumen cap), check it in time.
2. The first thing to check is the battery. If the hearing aid is dead, it will not work. At this time, you only need to replace the battery or charge it.
3. Ear moisture causes damage to the circuit of the hearing aid. See if the hearing aid is wet or there is water. If so, the circuit of the hearing aid may be affected. Dry the hearing aid and try again.
4. The volume adjustment was accidentally minimized or turned off.
The principle of hearing aid is very simple. It is composed of pickup, amplifier and loudspeaker. However, the structure of hearing aids varies greatly, and the price is also very different. The main reason is the miniaturization and high performance of devices. Some can be placed in the ear canal, and some should be hung outside the ear. In terms of performance, some can be adjusted automatically, and some have to be adjusted manually. The sensitivity is also very different. You can use micro batteries. The volume is very large. Some sensitivity is not good enough and you can't hear clearly when installed. Therefore, we can't think that the principle is very simple and anyone can do it.
The principle of hearing aid can be simply understood as: the sound signal is transformed into an electrical signal through the microphone, and then the electrical signal is amplified through the amplifier. Finally, the amplified electrical signal is transformed into an acoustic signal and transmitted to people's ears. The steps are incoming sound signal - electrical signal - amplification - outgoing sound signal.
Hearing aid is a small machine that amplifies the electric sound. It amplifies the sound to a certain extent. It is suitable for some people with hearing impairment (people who still have hearing function), so that these people can recover to the hearing of normal people with the help of the machine.
Hearing aids were born in the early 20th century and have made great progress in efficacy, but they are still not separated from the five most basic components in structure. They are: microphone (receiving external sound and transforming it); Amplifier (amplifying the converted sound); Receiver (converting sound into original sound); Power supply (to provide kinetic energy for hearing aids); Outer packaging (protect the internal structure and beautify the appearance).
CADENZA is a supplier of over-the-counter hearing aids. Please feel free to contact us if you are hearing aid wholesalers/distributors and looking for a trustworthy Chinese hearing aid supplier. No only the OTC hearing aid and OEM service are available, we have a strong R&D teams and engineers to support your any special requirement and development. We are not only your supplier, but your partner and technical supporter. CADENZA commit to provide customers with excellent service, satisfactory quality and competitive prices, help you expand your market and save OTC hearing aid price/costs!