Production of Speech Sounds

            More than half of a human body including the chest, lungs, larynx, pharynx, velum, hard palate, tongue, teeth, lips, nostrils, etc takes part in producing speech sounds. The muscle in our chest are contracted to generate the airflow from the lungs. The air from the lungs passes through the glottis in the larynx and is modified in different way with the opening and the narrowing of the glottal folds. Than the air is partially blocked, fully blocked, pressed, or uninterrupted in the vocal tract, and released abruptly or normally through the mouth or nostril so  as to articulate different speech sounds.