LING 290 Lecture Notes - Lecture 2: Vocal Folds, Vocal Tract, Palatine Uvula
2 Feb 2016
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Document Summary
Supralaryngeal vocal tract includes oral cavity, nasal cavity, and pharynx. Intercostal are muscles to help the chest and lungs to expand and contract. In order to maintain equalized pressure, atmospheric pressure equals pulmonic pressure. When air enters, lungs expand and diaphragm contracts (move down); volume increases and air pressure decreases inside the lungs to. When air leaves, lungs contracts and diaphragm relaxes (move up); volume decreases and air pressure increases inside the lungs. Air leaves from lungs, larynx, to oral and/or nasal cavities. Can be active or passive unmoving and active depends on sounds. Power sources: air pushes out of the lungs. By using nasal cavity, we can produce 3 english sounds (m, n, ) When using oral cavity, velum is blocked. By altering the vocal tract (tube) shape, airflow moves differently to create different sounds. Trachea helps to expand vertically and horizontally. Cartilage helps to hold the larynx (voice box) open and close.
