Whether the hearing aid is good for one ear or both ears

Whether the hearing aid is good for one ear or both ears

Symmetry is the need of human survival. We have a pair of hands, two eyes, a pair of ears, left and right brains, and the seemingly independent heart also divides the left and right atrium. And our ears have the function of maintaining body balance and sensing speed in addition to listening to the sense of hearing. These functions must be implemented in both ears.

Once a person has hearing problems, they can achieve the best results by binaural intervention. If there is a problem with binaural hearing, only one ear is selected, which is equivalent to spending 50% of the money to achieve only 25-30% acoustic effect.

What are the benefits of wearing a hearing aid with both ears?

First, increase listening comfort, participate in multi-person conversation

Since the binaural optional hearing aid improves the ear’s own sound collection, noise reduction, gain, positioning, balance function and fusion effect, the sound signal heard by the binaural wearer greatly increases the signal-to-noise ratio and excellent listening. Comfort, you can easily face the need for multi-party conversation.

Second, improve the 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. During the transmission of air, there will be changes in energy and speed. If the hearing loss and the threshold are asymmetrical, most of the sound from any direction will be heard by the better hearing threshold, so that the sound source cannot be determined. The direction.

Third, strengthen noise reduction and speech understanding

The auricle of the human ear has a sound collection and noise reduction function. For a hearing-impaired hearing loss patient, it is important to strengthen 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 enhancing the language resolution.

Fourth, to avoid delayed hearing deprivation

If a patient with bilateral hearing impairment chooses to wear only one hearing aid, then the ability of the auditory center without the hearing aid ear to gradually understand the language will gradually decline. This phenomenon is called progressive (late) in audiology. Sexual deprivation effect, the longer the time, the more serious.

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 to simultaneously select hearing aids for both ears.

Fifth, enhance the integration effect of binaural loudness

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, the probability of the hearing aid entering saturation is reduced, which is more helpful to improve the speech intelligibility after hearing aid.

6. Delaying 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.

Hearing reminds you that binaural hearing loss should be equipped with hearing aids in both ears!