In the case of users with bilateral hearing loss, professional hearing aid fitters will advise the user to wear hearing aids in both ears, because wearing a hearing aid with binaural ears has more advantages than wearing a single ear.
1~ Improve sound source positioning capability
When sound waves propagate from different directions to the ears, unwanted phase differences, time differences, and intensity differences are produced. The brain uses the small differences in the received signals of the ears to determine the direction of the sound. This feature is not possible when only one ear accepts the signal.
2~ Prevent projection effect
When the sound passes from one side to the other, it passes through the head and blocks the sound, which causes the sound to attenuate, especially the high frequency part (>1500Hz) decays to 10-16dB. There is no head blocking problem when listening to both ears.
3 ~ better suppression noise
The auditory system is a good noise reduction system. If the signal-to-noise ratio of the binaural received signal is large, the center will bias the ear with high signal-to-noise ratio, which can reduce the influence of noise on speech understanding. At the same time, the auditory system integrates the waveform from the bilateral cochlea, which will produce an intrinsic Signal, which has a higher signal-to-noise ratio than a single ear.
4 ~ avoid delayed hearing deprivation
If a patient with symmetrical hearing loss wears a hearing aid only in one ear, the ability to recognize speech without the side of the hearing aid will gradually decline over the next few years, which is what we often call delayed onset deprivation. Wearing both ears can ensure that both ears have sound stimulation, which can better avoid the occurrence of auditory deprivation effect.
5~ suppress tinnitus
Hearing aids can be used to mask and even suppress tinnitus. Tinnitus is usually bilateral, so hearing aids can be better masked in both ears. Intentional studies have shown that 66% of tinnitus patients report that bilateral hearing aids can weaken tinnitus, and 13% of patients are effective for single-sided hearing aids.
6 ~ binaural integration effect
The threshold for binaural listening can be increased by 3dB compared to the threshold for a single ear listening state. This allows the hearing aid to be opened too large to achieve the same effect, while ensuring better sound quality in the unsaturated output of the hearing aid.
Jinghao medical hearing aid reminder: hearing aids need to be professionally “fitted”, it is very important to choose a professional hearing aid fitting center and hearing aid fittings! All patients and friends have any hearing problems can call the Jinghao medical consultation, or personally Come to the fitting center experience. Hearing aid free consultation phone: +86-18566295705
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Link：Reasons for the choice of hearing aids for both earsREF: Hearing Aids, Hearing Aids Supplier , Hearing Aids Types
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