ACOUSTIC CORRELATES OF VOCAL QUALITY
ACOUSTIC CORRELATES OF VOCAL QUALITY
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DOI：
10.1044/jshr.3302.298
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发表时间：
1990-06-01
期刊：
影响因子：
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通讯作者：
HICKS, DM
中科院分区：
文献类型：
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作者：
ESKENAZI, L;CHILDERS, DG;HICKS, DM
我们研究了正常嗓音受试者和发声障碍患者的元音/i/发声的几个声学指标与不同嗓音质量之间的关系。在患者(病理性嗓音)中，调查了五种品质：总体严重程度、声音嘶哑、呼吸困难、声音粗哑和发声沙哑。检查了六种声学测量方法。除了一个例外，所有测量都是从通过使用线性预测编码(LPC)技术对语音信号进行逆滤波而获得的残差信号中提取的。实施了一项正式的听力测试，以对每种病态声音的每种嗓音质量进行评级。一项正式的听力测试也对正常嗓音的整体优秀度进行了评分。采用1-7的评分标准。听力测试结果与各种声学测量结果之间的多元线性回归分析以预测平方和(PRESS)为选择标准。得到了有用的二阶或更低阶的预测方程，这些方程将特定的声学测量与五种质量中每一种病态声音的评级联系在一起。预测发声质量的两个最有用的参数是基音幅度(PA)和谐噪比(HNR)。没有一种声学测量可以对正常声音进行排名。
We have investigated the relationship between various voice qualities and several acoustic measures made from the vowel /i/ phonated by subjects with normal voices and patients with vocal disorders. Among the patients (pathological voices), five qualities were investigated: overall severity, hoarseness, breathiness, roughness, and vocal fry. Six acoustic measures were examined. With one exception, all measures were extracted from the residue signal obtained by inverse filtering the speech signal using the linear predictive coding (LPC) technique. A formal listening test was implemented to rate each pathological voice for each vocal quality. A formal listening test also rated overall excellence of the normal voices. A scale of 1-7 was used. Multiple linear regression analysis between the results of the listening test and the various acoustic measures was used with the prediction sums of squares (PRESS) as the selection criteria. Useful prediction equations of order two or less were obtained relating certain acoustic measures and the ratings of pathological voices for each of the five qualities. The two most useful parameters for predicting vocal quality were the Pitch Amplitude (PA) and the Harmonics-to-Noise Ratio (HNR). No acoustic measure could rank the normal voices.