Custom hearing aids are made according to the shape of the ear canal and hearing loss of the hearing patient.Divided into ear canal, ear canal and deep ear canal.Its main features are: make full use of the physiological functions of the human ear, use the auricle to collect more high-frequency sounds, make the sound clearer, thereby improving the language discrimination ability; beautiful, concealed, convenient, and comfortable; avoid psychological obstacles, and enhance confidence in life; Easy to operate, not restricted by movement; convenient to answer calls.
The listening center has more important sound signal analysis capabilities.The auditory center is damaged, and the auditory discrimination ability will be worse.There is a kind of deafness caused by central disorder, called central deafness.Typical centrally deaf patients can hear sounds, even very small sounds, but they cannot understand or hear clearly.Obviously, if you can’t hear it (or the sound is too low), you will definitely be inaudible; but even if you hear it, it will still be inaudible due to the deterioration of the inner ear and the hearing center’s analytical ability.
