基于相对基频的发声努力个体监测：与空气动力学及听众感知的关系
Individual Monitoring of Vocal Effort With Relative Fundamental Frequency: Relationships With Aerodynamics and Listener Perception.
作者信息
Lien Yu-An S, Michener Carolyn M, Eadie Tanya L, Stepp Cara E
出版信息
J Speech Lang Hear Res. 2015 Jun;58(3):566-75. doi: 10.1044/2015_JSLHR-S-14-0194.
PURPOSE
The acoustic measure relative fundamental frequency (RFF) was investigated as a potential objective measure to track variations in vocal effort within and across individuals.
METHOD
Twelve speakers with healthy voices created purposeful modulations in their vocal effort during speech tasks. RFF and an aerodynamic measure of vocal effort, the ratio of sound pressure level to subglottal pressure level, were estimated from the aerodynamic and acoustic signals. Twelve listeners also judged the speech samples for vocal effort using the visual sort and rate method.
RESULTS
Relationships between RFF and both the aerodynamic and perceptual measures of vocal effort were weak across speakers (R2 = .06-.26). Within speakers, relationships were variable but much stronger on average (R2 = .45-.56).
CONCLUSIONS
RFF showed stronger relationships between both the aerodynamic and perceptual measures of vocal effort when examined within individuals versus across individuals. Future work is necessary to establish these relationships in individuals with voice disorders across the therapeutic process.
目的
研究声学测量相对基频（RFF）作为一种潜在的客观测量方法，以追踪个体内部和个体之间发声努力的变化。
方法
12名嗓音健康的受试者在言语任务中有意调节发声努力。通过气动和声学信号估计RFF以及发声努力的气动测量指标——声压级与声门下压力级之比。12名听众还使用视觉分类和评分方法对言语样本的发声努力进行判断。
结果
跨受试者时，RFF与发声努力的气动和感知测量指标之间的关系较弱（R2 = 0.06 - 0.26）。在受试者内部，关系各不相同，但平均而言要强得多（R2 = 0.45 - 0.56）。
结论
与跨个体研究相比，在个体内部研究时，RFF与发声努力的气动和感知测量指标之间的关系更强。未来有必要在整个治疗过程中，针对嗓音障碍个体建立这些关系。
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