Vocal roughness and jitter characteristics of vowels produced by esophageal speakers.
Vocal roughness and jitter characteristics of vowels produced by esophageal speakers.
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食道扬声器产生的元音的声音粗糙度和抖动特征。
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
Y. Horii
中科院分区：
文献类型：
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作者：
B. E. Smith;B. Weinberg;L. Feth;Y. Horii
持续元音产生的九个食管扬声器录音带进行声学和感知分析。结果表明：（1）元音中存在的声音抖动的幅度明显大于正常说话者和有喉/发音障碍的说话者，（2）听众可以可靠地评价元音中声音粗糙的严重程度，（3）食管说话者的声音以不同程度的声音粗糙为特征，（4）平均基频，平均抖动，或抖动率的措施并没有作为有用的预测感知严重程度的声音粗糙。这些发现被解释为表明，食道扬声器调节基频的机制与正常扬声器采用的机制有很大不同，并且在自然产生的人类言语中感知粗糙严重程度的物理变量的身份还没有得到很好的理解。
Audiotape recordings of sustained vowels produced by nine esophageal speakers were subjected to acoustic and perceptual analysis. Results indicated that (1) the magnitude of vocal jitter present in the vowels was substantially larger than that observed in normal speakers and speakers with laryngeal/vocal disturbance, (2) listeners could reliably rate the severity of vocal roughness in the vowels, (3) voices of esophageal speakers were characterized by varying degrees of vocal roughness, and (4) mean fundamental frequency, mean jitter, or jitter ratio measures did not serve as useful predictors of the perceived severity of vocal roughness. These findings are interpreted to suggest that the mechanism esophageal speakers employ to regulate fundamental frequency is substantially different from that employed by normal speakers and that the identity of physical variables underlying the perception of roughness severity in naturally produced human speech is not well understood.