Chapter Introduction: Phonetics and Phonology sound is the primary medium by which information is conveyed in the languages of the world. A human being can communicate meaning to another person who hears and understands the spoken signal by speaking in a Therefore, we can say that particular language. speech is universal medium of linguistic communication for human beings. However, it is noted that all ving' languages in the world have spoken forms. Very few languages have no written forms. The study of pronunciation consists of two major subfields, namely phonetics and phonology. 1.1. Phonetics Phonetics is the study of physical properties of speech sounds which are used in languages to convey meaning. It is to describe and classify all speech sounds precisely. It is also used to determine further details such as how the separate sound segments are put together into sound patterns and how individual sounds may change in different environments. Spoken language must be articulated by the speaker, transmitted from the speaker to the hearer, and perceived by the hearer. Each of these aspects is deal with separate of study, namely articulatory phonetics, acoustic phonetics, and auditory phonetics 1.1.1. Articulatory phonetics is the study of how human beings for and produce sounds. It is the study of the positioning and functioning the human speech organs in the articulation of sounds. The focus articulatory phonetics is on describing and classifying sounds based on the various positions and functions of the organs of speech. 1.1.2. Acoustic phonetics focuses on the transmission of soul through the air by studying the sound waves which are created during speech. The quality of the sound being transmitted depends on how