齿擦音 /ð/ 的阻塞性改变：声学分析。
Stop-like modification of the dental fricative /ð/: an acoustic analysis.
机构信息
Speech Communication Group, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
出版信息
J Acoust Soc Am. 2010 Oct;128(4):2009-20. doi: 10.1121/1.3478856.
This study concentrates on one of the commonly occurring phonetic variations in English: the stop-like modification of the dental fricative /ð/. The variant exhibits a drastic change from the canonical /ð/; the manner of articulation is changed from one that is fricative to one that is stop-like. Furthermore, the place of articulation of stop-like /ð/ has been a point of uncertainty, leading to confusion between stop-like /ð/ and /d/. In this study, acoustic and spectral moment measures were taken from 100 stop-like /ð/ and 102 /d/ tokens produced by 59 male and 23 female speakers in the TIMIT corpus. Data analysis indicated that stop-like /ð/ is significantly different from /d/ in burst amplitude, burst spectrum shape, burst peak frequency, second formant at following-vowel onset, and spectral moments. Moreover, the acoustic differences from /d/ are consistent with those expected for a dental stop-like /ð/. Automatic classification experiments involving these acoustic measures suggested that they are salient in distinguishing stop-like /ð/ from /d/.
本研究集中于英语中常见的语音变体之一
齿擦音 /ð/ 的类塞音修饰。该变体与典型的 /ð/ 有很大的不同；发音方式从摩擦音变为类塞音。此外，类塞音 /ð/ 的发音部位一直存在不确定性，导致类塞音 /ð/ 和 /d/ 之间的混淆。在这项研究中，从 TIMIT 语料库中 59 名男性和 23 名女性说话者产生的 100 个类塞音 /ð/ 和 102 个 /d/ 音位中提取了声学和谱矩测量值。数据分析表明，类塞音 /ð/ 在爆发幅度、爆发频谱形状、爆发峰值频率、元音后续的第二共振峰和谱矩方面与 /d/ 有显著差异。此外，与 /d/ 的声学差异与预期的齿类塞音 /ð/ 一致。涉及这些声学度量的自动分类实验表明，它们在区分类塞音 /ð/ 和 /d/ 方面非常有效。
Zotero 插件