LING 330 Lecture Notes - Lecture 3: Phonation, Vocal Tract, Vocal Folds
14 Nov 2015
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Document Summary
There are different ways in which the larynx can produce sounds: the process is called phonation. Phonation is the use of the laryngeal system, with the help of an airstream provided by the respiratory system, to generate an audible source of acoustic energy which can be modified by the articulatory actions of the vocal apparatus. Nil phonation: silent, smooth (laminar) airflow through the wide open glottis zero airflow with the glottis closed or. Breath phonation: voiceless adjustment of the glottis is set between 60-95% of the maximum glottal area. Whisper phonation: the adjustment is less than 25% of the maximum glottal area; the rate of airflow through the very constricted glottis for whisper is 25-30 cc/s. Voiced phonation (= voicing or modal voice: acoustically different from the breath and whisper phonation states: breath phonation. Continuous acoustic input into the vocal tract whisper phonation. Pulsed input, with the frequency of the pulsing being the product of muscular and aerodynamic factors.
