Abstract
The purpose of the present investigation was to observe simultaneous laryngeal and respiratory function during singing. Five professionally trained classical singers (three men and two women) performed singing tasks including crescendo–decrescendo at two register transitions. Laryngeal aerodynamic measures of estimated subglottal pressure, open quotient, speed quotient, maximum flow declination rate, and alternating glottal airflow were made as well as acoustic measures of sound-pressure level and fundamental frequency. Lung, rib cage, and abdominal volume measures were also made for each breath group. Aerodynamic data were collected with a Glottal Enterprises airflow mask. Oral airflow was inverse-filtered using CSpeech. Respiratory data were collected using Respitrace. Aerodynamic, acoustic, and respiratory kinematic data were used to describe the respiratory and laryngeal mechanisms used to control register transitions. Individual subject data show respiratory and laryngeal variation when comparing register transitions. A brief video will be shown to demonstrate the technology used. [Work supported by NIH.]
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