Human speech is initiated when the lungs achieve a critical pressure forcing the vocal folds apart, expelling air through the glottis, and beginning self-sustained oscillations. The oscillations arise due to coupling between the aerodynamic forces and the structural properties of the vocal folds. During each phonation cycle the glottis transitions from a convergent channel upon opening, to a uniform, and finally a divergent channel before closing and repeating the cycle. The resulting pulsatile flow field which emanates from the vocal folds forms the raw component of speech.
- Bioengineering Division
An Experimental Investigation of the Quasi-Steady Assumption in Speech
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Erath, BD, & Plesniak, MW. "An Experimental Investigation of the Quasi-Steady Assumption in Speech." Proceedings of the ASME 2009 Summer Bioengineering Conference. ASME 2009 Summer Bioengineering Conference, Parts A and B. Lake Tahoe, California, USA. June 17–21, 2009. pp. 475-476. ASME. https://doi.org/10.1115/SBC2009-206888
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