Zhang Zhaoyan
Department of Head and Neck Surgery, University of California, Los Angeles, 31-24 Rehabilitation Center, 1000 Veteran Avenue, Los Angeles, California 90095-1794, USA
JASA Express Lett. 2021 Feb;1(2):025201. doi: 10.1121/10.0003393.
This study investigates the peak vocal fold contact pressure at different conditions of epilaryngeal narrowing and laryngeal adjustments. The results show that for a given subglottal pressure, the peak vocal fold contact pressure may increase or decrease with epilaryngeal narrowing, depending on a complex interaction between vocal fold vertical thickness, initial glottal angle, and subglottal pressure. However, epilaryngeal narrowing also significantly increases vocal efficiency so that for a target sound pressure level, the peak vocal fold contact pressure decreases with epilaryngeal narrowing. Overall, the peak vocal fold contact pressure and respiratory effort can be minimized by epilaryngeal narrowing, adopting a small initial glottal angle, and an intermediate vocal fold thickness.
本研究调查了在不同的喉上缩窄和喉部调整条件下的声带峰值接触压力。结果表明，对于给定的声门下压力，声带峰值接触压力可能会随着喉上缩窄而增加或减少，这取决于声带垂直厚度、初始声门角度和声门下压力之间的复杂相互作用。然而，喉上缩窄也显著提高了发声效率，因此对于目标声压级，声带峰值接触压力会随着喉上缩窄而降低。总体而言，通过喉上缩窄、采用较小的初始声门角度和中等声带厚度，可以使声带峰值接触压力和呼吸努力最小化。
