Why do you feel echoed after wearing a hearing aid?

This is because the ear mold (including the custom-made hearing aid housing) closes the external auditory canal, and the sound of the self-talk is transmitted through the middle ear and the skull, causing the vibration of the external auditory canal cartilage. Under normal circumstances (without hearing aids) the external auditory canal is open. This vibrational energy is released without being noticed. When the external auditory canal is closed by the ear mold, this part of the energy is left in the external auditory canal, thereby causing the above phenomenon. This can also happen if a normal person blocks the ear canal with a finger or something else. Call this phenomenon medicallyPlugging effect.

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If you feel echo after wearing the hearing aid, you need to go to the fitting center to check the cause. It may be a problem of debugging. It may also be related to the size of the earplug or the size of the vent. There is also a possibility to block the ear because we have the hearing aid front ear. The road is open, with the hearing aid behind the ear canal blocked by hearing aids or earplugs. Since the ear mold (including the custom hearing aid housing) closes the external auditory canal, the sound of the speech is transmitted through the middle ear and the skull, causing the vibration of the external auditory canal. And caused by it. Under normal circumstances (without hearing aids) the external auditory canal is open. This vibrational energy is released without being noticed. When the external auditory canal is closed by the ear mold, this part of the energy is left in the external auditory canal.

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