Effects of Lung Volume on the Glottal Voice Source.
Research output: Contribution to journal › Journal article › Research › peer-review
Jenny Iwarsson, M Thomasson, J Sundberg
According to experience in voice therapy and singing pedagogy, breathing habits can be used to modify phonation, although this relationship has never been experimentally demonstrated. In the present investigation we examine if lung volume affects phonation. Twenty-four untrained subjects phonated at different pitches and degrees of vocal loudness at different lung volumes. Mean subglottal pressure was measured and voice source characteristics were analyzed by inverse filtering. The main results were that with decreasing lung volume, the closed quotient increased, while subglottal pressure, peak-to-peak flow amplitude, and glottal leakage tended to decrease. In addition, some estimates of the amount of the glottal adduction force component were examined. Possible explanations of the findings are discussed.
|Journal||Journal of Voice|
|Number of pages||9|
|Publication status||Published - 1998|