CSD-2464 Lecture Notes - Lecture 1: Voice-Onset Time, Velarization, Phoneme

• School: App State
• Department: Communication Sciences and Disorders
• Course: CSD-2464
• Professor: Jennifer Dalton

Document Summary

Production of approximates: approximates, liquids (l, r, tongue tip is raised toward alveolar ridge (superior longitudinal muscle) /r: tongue tip contact with alveolar ridge, slides tongue down: lateral emission of air, no tongue tip contact with alveolar ridge, retroflexed (tongue tip bent up, lip rounding, glides (w, j) /j/ production is similar to /i: high front tongue position, genioglossus is active, formant values similar to /i, low f1, high f2, formant transitions vary. Looser for vowels: nasals require open vp port. In nasal stops, oral cavity is blocked at same places of articulation as for stops: acoustics of nasal stops, opening of vp port creates large resonant cavity which results in low frequency nasal resonants, amplitude is low. Production of fricatives: aperiodic sound source in upper vocal tract, airflow forced through constriction creates turbulence, can be formed at many places in vocal tract, labiodental [f v]