The more severe the deafness, the more obvious the language barrier. Hearing loss is less than 25dB, and there is generally no language barrier, which will not affect normal language communication.
People with an average hearing loss of 26 ~ 40 decibels have no difficulty in hearing the general sound, but they will find it difficult to hear clearly in many meetings, and even smaller sounds are not easy to hear, especially when the high frequency drops obviously. If the baby has this kind of hearing loss, it will affect the development of language and intelligence to varying degrees.
The average hearing loss is 4 1 ~ 55dB, so it is difficult to distinguish the sound with ordinary volume. If it happens in infancy, it may lead to language development retardation and affect children's language learning.
The average hearing loss is 56 ~ 70dB, and it is difficult to distinguish when talking loudly. If it happens to infants, it will lead to obvious language retardation and abnormal pronunciation.
The average hearing loss is 765,438+0 ~ 90dB, and you can feel loud sounds, but you can't distinguish sounds, which may lead to language barriers.