Vowel amplitude modulations in patients with laryngeal diseases.
Vowel amplitude modulations in patients with laryngeal diseases.
复制标题
喉部疾病患者的元音振幅调制。
DOI：
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发表时间：
1969
影响因子：
2.4
通讯作者：
Y. Koike
中科院分区：
文献类型：
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作者：
Y. Koike
持续元音的振幅在由耦合到气管前皮肤的麦克风拾取的声学信号的每个基本周期的主振幅峰值处测量。计算序列相关系数，并为每个样品制作相关图，以研究振幅调制的周期性。三组受试者进行了研究：15例喉肿瘤，6例单侧喉麻痹，20例正常人作为对照组。在每组受试者中，经常发现连续的主导振幅峰之间存在高度相关性。喉肿瘤患者的相关图常表现出较强的周期性，周期为3 ~ 12个基本周期，而麻痹患者的相关图则未发现相同范围内的周期性调制。结果表明，振幅信息可能有助于发展一种客观评价喉功能障碍和检测喉功能障碍的方法。
The amplitudes of sustained vowels were measured at the dominant amplitude peak of each fundamental period of the acoustic signal picked up by a microphone coupled to the pretracheal skin. Serial correlation coefficients were computed and correlograms were made for each sample to investigate the periodicity in the modulation of the amplitude. Three groups of subjects were studied: 15 cases with laryngeal neoplasms, six cases with unilateral laryngeal paralysis, and 20 normal subjects as a control group. In each group of subjects, a high correlation was often found between the consecutive dominant amplitude peaks. The correlograms for patients with laryngeal neoplasms often displayed strong periodicities with periods of three to 12 fundamental periods, while for the paralysis cases no evidence of periodic modulations in the same range was found. The results seem to indicate that amplitude information may be useful for the development of an objective measure to evaluate laryngeal dysfunction and to detect s...