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Ten benefits of wearing hearing aids in both ears!
Ten benefits of wearing hearing aids in both ears!
1. Improve sound source positioning ability
The human ear has a strong sound source positioning capability. However, its prerequisite is that both ears must have the same hearing threshold. In the process of air transmission, there will be changes in energy and speed. If the hearing loss and the threshold are asymmetrical, the direction of the sound source cannot be determined. Therefore, the binaural option can better improve the positioning ability of the sound source.
2. Improve noise reduction and speech understanding
The auricle of the human ear has a sound collection and noise reduction function. For a hearing-impaired patient, it is important to improve the signal-to-noise ratio. Wearing the ears means that the two auricles have both sound collection and noise reduction capabilities, which is of great significance for improving language resolution.
3. Enhance the binocular loudness integration effect
The acoustics accepted by binaural hearing are higher than the single ear. At the threshold level, the binaural threshold is better than the single ear threshold by about 3 decibels. At the threshold level, the binaural threshold is better than the single ear threshold by about 10 decibels. Therefore, wearing the hearing aid with both ears can slightly reduce the overall gain of each hearing aid, thereby reducing the possibility of acoustic feedback and increasing the battery life. At the same time, for patients with severe paralysis, it is more helpful to improve the speech intelligibility after hearing aid.
4. Avoid delayed hearing deprivation
The main reason for the auditory deprivation effect is that the ear of the hearing aid conveys enough information to the brain that the brain no longer pays attention to the ear without the hearing aid, and the brain seems to give up the attention to transmitting the weaker signal ear. In order to avoid this phenomenon, the most effective solution at present is only to choose a hearing aid at the same time.
5. Delay the decline of auditory nerve function
Solving the phenomenon of auditory deprivation is to solve the progressive decline of the central nervous function. Life is in motion, and the nerve cells in the central nervous system can achieve the purpose of exercise by the stimulation of sound. Therefore, it is very important for each patient with bilateral hearing loss to be able to have both ears in a normal vocal state, and to stimulate the excitation of the auditory nerve by acoustic stimulation.
6. Improve listening comfort and participate in multi-person conversations
Thanks to the binaural optional hearing aid, it improves the ear's own sound collection, noise reduction, gain, positioning, balance function and fusion effect. The user can greatly improve the signal-to-noise ratio and excellent listening to the sound signal heard. Comfort.
7. Eliminate the head shadow effect
If the hearing loss of a patient's ears is asymmetrical, when the sound comes from the direction of the ear with poor hearing, the ear with the better hearing will be directed towards the sound source. This is the cephalometric effect. In the fitting, it was found that a large number of patients with one-sided options would be very difficult to listen to when hearing the sound from the contralateral ear, often with the hearing ear wearing the ear facing the other side. If the patient chooses to wear both ears, it will solve the phenomenon of head shadow and can easily listen to the sound from many parties.
8. Suppress (mask) tinnitus
The amplified sound of the hearing aid suppresses the feeling of tinnitus. If it is only a one-sided option, the tinnitus on the other side may still exist, which will affect comfort and clarity. Therefore, in order to improve the comfort and intelligibility of listening, it is necessary to strive for binaural matching in order to improve the listening comfort and the hearing loss and the feeling of eliminating tinnitus.
9. Prevention of unilateral auditory fatigue
Most patients who use hearing aids on one side have a lack of integration, noise reduction and orientation. Often, in order to hear or hear certain sounds, an unrestricted method of increasing the volume of the hearing aid is taken. Over time, the auditory nerves of the brain adapt to loud sounds, which can cause the hearing threshold to increase. Because the binaural wear can improve the integration effect, noise reduction and orientation ability, it will provide the ear with higher comfort and signal-to-noise ratio, which will avoid the unilateral increase of the volume and prevent hearing fatigue.
10. Reduce the blocking effect
The ear plugging effect is a subjective feeling that the low-frequency sensory loudness of the sound (such as speaking, chewing, swallowing, walking, etc.) is significantly increased. When the external auditory canal is closed, the more space left inside the ear canal, the lighter the feeling of blocking the ear, and vice versa. Since the binaural wear can improve the integration effect, especially the energy integration of the low frequency sound is reduced, and the overall output gain of the hearing aid can be reduced. Practice has shown that for users who are initially fitted or unilaterally worn, the occlusion effect is greatly reduced after the bilateral ears are worn.
Therefore, as long as there are hearing impairments in both ears
Moreover, under the premise of confirming that there are no other contraindications
Must try to choose binaural fitting