Relationship between lung volumes and subglottal resonances

Abstract

Subglottal resonances are dependent the anatomical structure of the lungs, but efforts to detect changes in subglottal resonances throughout an utterance have failed to show any effect of lung volume. In this study, we present the results of an experiment investigating the relationship between lung volumes and subglottal resonances. The pulmonary subdivisions for several speakers were established using a whole-body plethysmograph. Subsequently, lung volume and subglottal resonances were recorded simultaneously using a spirometer and an accelerometer while the speakers produced long sustained vowels.