ON THE RELATION BETWEEN SUBGLOTTAL PRESSURE AND FUNDAMENTAL-FREQUENCY IN PHONATION
ON THE RELATION BETWEEN SUBGLOTTAL PRESSURE AND FUNDAMENTAL-FREQUENCY IN PHONATION
复制标题
DOI：
10.1121/1.397562
复制
发表时间：
1989-02-01
影响因子：
2.4
通讯作者：
TITZE, IR
中科院分区：
文献类型：
--
作者：
TITZE, IR
发声时基频随声门下压的变化是根据振动幅度与声带长度之比来量化的。这个比率在弦乐器中通常非常小，但在声带振动中变得相当可观。因此，声带组织中的张力在振动周期中不是恒定的，并且动态张力引起振幅-频率依赖性。结果表明，在人和犬喉中观察到的声门下压的基频的典型的2.sbd.6Hz/cm H2O上升是这种振幅·sbd·频率依赖性的直接和可预测的结果。目前的研究结果仅限于胸部音域的发声。
The change in fundamental frequency with subglottal pressure in phonation is quantified on the basis of the ratio between vibrational amplitude and vocal fold length. This ratio is typically very small in stringed instruments, but becomes quite appreciable in vocal fold vibration. Tension in vocal fold tissues is, therefore, not constant over the vibratory cycle, and a dynamic tension gives rise to amplitude-frequency dependence. It is shown that the typical 2.sbd.6Hz/cm H2O rise in fundamental frequency with subglottal pressure observed in human and canine larynges is a direct and predictable consequence of this amplitude.sbd.frequency dependence. Results are presently limited to phonation in the chest register.