Effects of Lung Volume on the Glottal Voice Source.
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Effects of Lung Volume on the Glottal Voice Source. / Iwarsson, Jenny; Thomasson, M; Sundberg, J.
In: Journal of Voice, Vol. 12, No. 4, 1998, p. 424-433.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Effects of Lung Volume on the Glottal Voice Source.
AU - Iwarsson, Jenny
AU - Thomasson, M
AU - Sundberg, J
PY - 1998
Y1 - 1998
N2 - 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.
AB - 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.
M3 - Journal article
VL - 12
SP - 424
EP - 433
JO - Journal of Voice
JF - Journal of Voice
SN - 0892-1997
IS - 4
ER -
ID: 21909501