The Vocal Clarity of Female Speech-Language Pathology Students: An Exploratory Study
The Vocal Clarity of Female Speech-Language Pathology Students: An Exploratory Study
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DOI：
10.1016/j.jvoice.2010.10.008
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发表时间：
2012-01-01
期刊：
影响因子：
2.2
通讯作者：
Yiu, Edwin
中科院分区：
文献类型：
--
作者：
Warhurst, Samantha;Madill, Catherine;Yiu, Edwin
目标。本研究采用声学和听觉知觉分析的方法研究了语言病理学学生清晰声音的产生。研究设计。采用前瞻性研究方法，对两组言语语言病理学本科生（41名）和毕业班（34名）的语音质量进行评价。说话者被要求在两种情况下发出一个持续的元音：一种是习惯性的说话声音，另一种是“清晰”的声音，就像他们在声音治疗（表演声音）中做模特一样。对这些声音样本进行了声学和感知分析。在不同的声音条件下，学生群体的声音清晰度分布没有差异。毕业生的声音明显比新生的声音更少抖动和闪烁。在两种声音条件下，声学测量没有发现显著差异。清晰的声音比不清晰的声音具有更高的谐波噪声比（HNR）和更低的抖动（%）和闪烁（%）。毕业班学生的声音在感知上并不比初班学生的声音更清晰。学生的表演声音在感知上并不比他们的习惯声音清晰。感知清晰的声音与较高的HNR （dB）和较低的抖动和闪烁相关，这表明噪音和扰动有助于对声音清晰度的感知判断。
Objectives. This study investigated the production of a clear voice in speech pathology students using acoustic and auditory-perceptual analyses.Study Design. A prospective study to evaluate the vocal quality of two groups of speech-language pathology students: first year (N = 41) and final year, graduating (N = 34) undergraduates was conducted.Method. Speakers were asked to produce a sustained vowel in two conditions: habitual speaking voice and a "clear" voice, as if they were modeling during voice therapy (performance voice). Acoustic and perceptual analyses were carried out on these voice samples.Results. There were no differences in distribution of vocal clarity between student cohorts and the voice conditions. The graduating students' voices had significantly less jitter and shimmer than the voices of the beginning students. No significant differences in the acoustic measures were found between the two voice conditions. Clear voices had significantly higher harmonic-to-noise ratio (HNR) and lower jitter (%) and shimmer (%) than unclear voices.Conclusions. The graduating student SLPs did not produce perceptually clearer voices than the beginning student SLPs. The students' performance voices were not perceptually clearer than their habitual voices. Perceptually clear voice was associated with significantly higher HNR (dB) and lower jitter and shimmer, suggesting that acoustic noise and perturbation contribute to perceptual judgments of vocal clarity.