Published online by Cambridge University Press: 21 June 2019
Instrumental phonetic techniques illustrate the analyses behind the interpretation of laryngeal articulator function and laryngeal sounds. High-speed laryngoscopy demonstrates aryepiglottic trilling. Cineradiography demonstrates where and how epiglottal stop and voiceless and voiced aryepiglottic trilling are generated. Simultaneous laryngoscopy and laryngeal ultrasound gauge the vertical displacement of the larynx during laryngeally constricted articulations compared to opening manoeuvres. MRI provides insight into the effects of lower-vocal-tract configurations on changes in vowel quality. Computational modelling shows how algorithms that account for voicing can be adapted to explain the mechanics of complex laryngeal vibrations. Vocal-ventricular fold coupling (VVFC) occurs as a vertical compression effect in stopping airflow and in constricted phonation types (creaky voice, harsh voice) and is modelled to illustrate the relationships and actions among laryngeal structures. Analyses, data capture, explanations of the algorithms, and videos of the working models are incorporated in the online companion materials, including articulatory simulations by the laryngeal component of the ‘ArtiSynth’ model.
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