It is a process that requires many steps to take place because it is not genetically inherited although there is an innate predisposition factor that supports the onset of language for children regardless of the country of origin, race, class, economic status or gender. Dr. Klass, in her writings, emphasizes the importance of babbling, which is made up of well-formed syllables, and the similarity that coexists among all children, which is the key to first language acquisition. Cooing and babbling, which are the first step in language acquisition, produce sequences of vowel-like sounds such as [i], [u], [k], [g], [m]. Cooing is described as a baby's first use of language as a sound, which occurs in the first few months after birth. At this stage, the child produces some high vowel sounds like [i] and [u]. As the baby progresses, he is able to use velar consonants such as [k] and [g] by the age of four months. Then, babbling begins between six and eight months, usually when the baby is sitting and begins to make a combination of different vowels and consonant sounds such as ba-ba-ba and ga-ga-ga, which will change over time. when the child is about ten months old with a more complex enunciation with the patterns of the combination of consonants and vowels as well as variation such as: ba-ba-da-da, ma-ma-ma, da-da-ba. According to Dr. Klass, seven-month-old infants who do not express many consonants, as mentioned above, and only repeat the sounds aaaa and ooo are less likely to develop first language acquisition which can eventually lead to the formation of words for speech . develop. In other words, the sound of language is a learning process. For example, you need to know that to get the "p" sound the two lips must be close to each other and you need to inflate your mouth. This is a process that must be learned by agreeing with the