Speech is produced as the air is flowed from the lungs moving in and out. The vital organs that are involved to make this process possible are the lungs, larynx, and pharynx, oral and nasal cavities (Honda 2003). These organs make up the vocal tract. According to Mahendru (2014), he stated that acoustic air waves are formed from the lungs that provide the air force to bring about sound. The sound starts its journey from the lungs that goes through a number of channels and makes its exit through the mouth and nasal cavities. According to Huffman (2016) the first modification takes place when air is made to flow in the larynx, here the vocal folds are positioned to produce sound. When the air moves from the lungs unto the trachea and upon reaching the larynx, the lips serves as a challenge in order for the correct sound to be …show more content…
One sound that can be used to classify this is the sound of the letter “b” in bun, Ben which the limited movement of the upper lip can produce. The teeth also give the dental and interdental sound of the “d” as in dog or “t” as in ten and the “th” as in thing respectively. These sounds are produced when the tongue makes contact with the alveolar ridge “t” as in top, “d” as in dip. When the tongue makes contact with the region just behind the alveolar ridge that slants upwards to the palate the “ch” as in chew is the generated sound. The palate which is called the hard palate in this articulator which is located to the front of the mouth can make the “y” as in you when the tongue comes in contact. Another part of the vocal tract is when the tongue makes contact with the velum it gives the “k” as in king and the “g” as in God. The uvula is another part of the vocal tract but there are no sounds that be produced that can be understood to be a sound in the English