Assessment of Vocal Function Using Simultaneous Aerodynamic and Calibrated Videostroboscopic Measures
- 1 June 1998
- journal article
- research article
- Published by SAGE Publications in Annals of Otology, Rhinology & Laryngology
- Vol. 107 (6), 477-485
- https://doi.org/10.1177/000348949810700605
Abstract
Despite many attempts to model how vocal fold movements relate to the aerodynamic forces acting on them during phonation, there have been few simultaneous measurements of glottal area and transglottal air pressures and flows. A novel system is described that combines endoscopic measurement of glottal area with aerodynamic flow and pressure measures made during phonation. Results from bench top model tests and from one human subject are presented. For both tests, an aerodynamic model of airflow through a constriction was used to predict the area of the constriction (glottis), and these predictions were compared with endoscopic measurements. The results showed good correlation between predicted and observed areas; however, for small constrictions (2), whether artificial or glottal, the errors in estimating areas with either optical or aerodynamic methods increase significantly. These results suggest that this measurement system has the potential to enhance the assessment of vocal function.Keywords
This publication has 13 references indexed in Scilit:
- Acoustic PhoneticsThe Journal of the Acoustical Society of America, 2001
- CURRENT DIAGNOSTICS AND OFFICE PRACTICECurrent Opinion in Otolaryngology & Head and Neck Surgery, 1997
- A comparison of subglottal and intraoral pressure measurements during phonationJournal of Voice, 1995
- Acoustic characteristics of American English vowelsThe Journal of the Acoustical Society of America, 1995
- In vivo measurement of laryngeal mucosal wave speed in humansThe Journal of the Acoustical Society of America, 1993
- Synchronizing videostroboscopic images of human laryngeal vibration with physiological signalsAmerican Journal of Otolaryngology, 1992
- Physiological correlates of the inverse filtered flow waveformJournal of Voice, 1992
- Glottal airflow and transglottal air pressure measurements for male and female speakers in soft, normal, and loud voiceThe Journal of the Acoustical Society of America, 1988
- On the Air Resistance and the Bernoulli Effect of the Human LarynxThe Journal of the Acoustical Society of America, 1957
- Control Methods Used in a Study of the VowelsThe Journal of the Acoustical Society of America, 1952