Psychoacoustic roughness as a measure of creakiness in two dialects of Zhuang
Psychoacoustic roughness as a measure of creakiness in two dialects of Zhuang
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发表时间：
2017
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通讯作者：
Jeremy Perkins
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作者：
Jeremy Perkins
我们对武鸣和都安壮语的声调系统进行了研究，重点是F0和吱吱声。结果表明：(1)武鸣壮的2、4声调之间存在语音对比；(2)都安庄没有这种语音对比，每个声调都是由F0来区分的。本研究采用心理声学粗糙度的客观测量指标，揭示了武鸣壮语的发声对比。相比之下，另一种检测脆度的方法Covarep并没有显示出任何这样的脆度差异。因此，粗糙度和Covarep吱吱声检测算法不同，在这种情况下，粗糙度提供了更灵敏的吱吱声测量方法。
We investigated the tonal systems of Wuming and Du’an Zhuang via a production study focusing on F0 and creaky phonation. Results revealed that (1) there is evidence of a phonation contrast among tones 2 and 4 in Wuming Zhuang and (2) no such phonation contrast exists in Du’an Zhuang, where F0 alone distinguishes each tone. The study utilized an objective measurement of psychoacoustic roughness as a proxy of creakiness, revealing the phonation contrast in Wuming Zhuang. In contrast, another method of creakiness detection, Covarep, did not reveal any such creakiness difference. Roughness and Covarep creakiness detection algorithms differ then, with roughness providing a more sensitive measure of creaky phonation in this case.