What’s the Function of Hearing Aid Earmould?
source：未知date：2023-05-30 10:28 views：
Ear mold is an indispensable and important component of hearing aids, located in the ear nail cavity or ear canal. It is fixed to the auricle by the curvature of the ear wheel and the opposite ear wheel, the ear screen and the opposite ear screen, and the ear canal. It transmits the amplified sound from the hearing aid receiver to the external auditory canal or eardrum.
For intra ear canal hearing aids, it can be considered that the outer shell of the hearing aid is the ear mold. The ear mold is not only a sound transmission component of a hearing aid, but can also improve the sound quality of the hearing aid to a certain extent.
Function 1
The most basic function of the ear mold is to establish an acoustic channel between the receiving end of the hearing aid and the eardrum. The sound outside the ear mold is moderately isolated, and the amplified sound inside the ear mold does not leak out from the external ear canal, causing sound feedback.
Adjusting the shape of the ear mold and the size of various apertures can to some extent compensate for the shortcomings in the acoustic characteristics of hearing aids, and further improve the sound quality of hearing aids. It can also improve and meet the needs of users in terms of aesthetics and comfort. Because the ear mold is made entirely based on the shape of the user's auricle and ear canal, it can also make the hearing aid more secure to wear.
Function 2
The ear mold of a hearing aid is a specially customized earplug for a back of the ear hearing aid, which plays a very important role in compensating for hearing loss.
1. A relatively good customized ear mold can improve the hearing aid effect by about 30%.
2. Prevent and reduce whistling and noise, and eliminate feedback whistling.
3. Fix the hearing aid. Before production, the audiologist personalized designs the sound transmission holes, ventilation holes, damping settings, and other aspects of the ear mold based on the residual hearing of the deaf and the needs of hearing rehabilitation. The ear mold made according to the design prescription can improve the acoustic characteristics of the hearing aid and make the wearing effect of the hearing aid wearer better.
Function 3
Ear molds are a part of the entire hearing aid system, and wearing them can balance external ear canal pressure, reduce ear blockage, and make wearing more comfortable.
Ear molds can further compensate and modify the sound amplified by hearing aids, improving the loudness and clarity of the sound.
Ear molds can also serve as a fixation to prevent damage to hearing aids due to detachment during daily activities. Therefore, customizing a suitable ear mold will enable the hearing aid to have a better hearing aid effect.
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