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Unformatted text preview: Session 3 – 09/02/10 (Chapter 1 pp. 23-34) Articulatory Phonetics: The Vocal T ract and the Articulation of English Sounds Phonetics – the study of the physical properties of speech sounds. What are the articulatory, acoustic and perceptual characteristics of speech sounds? Clinical applications Educational applications Technological applications Forensic/ biometrics Scientific interest Process Air in from the lung (Vocal folds vibrate and generate sound) Constrictions are formed, which shape the sound Sound out Tubes are soft Exploratorium: Vocal Vowels Sound Source – Air coming through larynx sets the vocal folds vibrating If vocal folds are close enough together and air is flowing out from lungs, they will vibrate Approximately 80-300 vibration per second (Hz) VOCAL TRACT ANATOMY – supple, bent tube with air coming in at one end (lungs) and out the other (lips) Tongue- Tip very elastic- Body - Dorsum back part- Root Epiglottis protect trachea, so people don’t choke Esophagus Trachea Larynx (vocal folds) Velum (Soft palate) Nasal cavity Lips Alveolar ridge Sound filtering: Constrictions Vocal Dance A brain-choreographed vocal “dance” encodes messages and emotions. Coordinated, continuous, and overlapping movements of...
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This note was uploaded on 02/01/2011 for the course LING 275 at USC.