The effects of the false vocal fold gaps on intralaryngeal pressure distributions and their effects on phonation
The effects of the false vocal fold gaps on intralaryngeal pressure distributions and their effects on phonation
复制标题
假声带间隙对喉内压力分布的影响及其对发声的影响
DOI：
10.1007/s11427-008-0128-3
复制
发表时间：
2008-11
期刊：
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
Human phonation does not merely depend on the vibration of the vocal folds. Research by clinical and computer simulations has demonstrated that the false vocal fold (FVF) is an important laryngeal constriction that plays a vital role during human voice production. This study explored the effects of the FVF gaps using both the three-dimensional Plexiglas model and the numerical computation methods. Twelve FVF gaps (ranging from 0.02 to 2.06 cm) were used in this study at three glottal angles (uniform and convergent/divergent 40°), two minimal glottal diameters (Dg) (0.04 cm and 0.06 cm) separately, and the constant subglottal pressure (8 cm H2O). The results suggested that (1) the intralaryngeal pressure was the lowest and the flow was the highest (least flow resistance) when the FVF gap was 1.5–2 times greater thanDg; (2) the divergent glottal angle gave lower pressure and greater flow than the convergent and uniform glottal angle as there were no FVF conditions; (3) the presence of the FVF decreased the effects of the glottal angle to a certain extent; and more importantly, (4) the presence of the FVF also moved the separation points downstream, straightened the glottal jet for a longer distance, decreased the overall laryngeal resistance, and reduced the energy dissipation, suggesting the significance of FVF in efficient voice production. These results may be incorporated in the phonatory models (physical or computational) for better understanding of vocal mechanics. The results might also be helpful in exploring the surgical and rehabilitative intervention of related voice problems.
登录
查看更多内容
DOI：
10.1121/1.2186548
发表时间：
2006-04
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
Sheng Li;R. Scherer;M. Wan;Supin Wang;Huihui Wu
通讯作者：
Sheng Li;R. Scherer;M. Wan;Supin Wang;Huihui Wu
DOI：
--
发表时间：
1984
期刊：
--
影响因子：
--
作者：
R. Blevins
通讯作者：
R. Blevins
DOI：
10.1115/1.2187042
发表时间：
2006-06-01
影响因子：
1.7
作者：
Kucinschi, Bogdan R.;Scherer, Ronald C.;Ng, Terry T. M.
通讯作者：
Ng, Terry T. M.
影响因子：
2.4
作者：
Shinwari, D;Scherer, RC;Afjeh, AA
通讯作者：
Afjeh, AA
影响因子：
2.4
作者：
Scherer, RC;Shinwari, D;Afjeh, AA
通讯作者：
Afjeh, AA