Absence of speech indicates a lack of intelligence. Absence of speech means that a deaf person is physically unable to speak. The ability to speak is usually determined by the age of diagnosis of hearing loss and the type of intervention. With an intensive early intervention program, many children with severe hearing impairment can learn to speak intelligibly. Some deaf people, aware of the poor quality of their speech, prefer to use sign language.prefer to use sign language as their main method of communication.
All deaf people can lip-read.
Good language skills improve the ability to lip-read. Deaf adults always bear deaf children. Hearing aids and cochlear implants provide additional auditory information that assists the development of speech and language. Sign Language is simply mime and gesture and can be learnt easily and rapidly. Sign Language is the same throughout the world.