PRODUCTION AND PERCEPTION OF COARTICULATED TONES
PRODUCTION AND PERCEPTION OF COARTICULATED TONES
复制标题
DOI：
10.1121/1.408684
复制
发表时间：
1994-04-01
影响因子：
2.4
通讯作者：
XU, Y
中科院分区：
文献类型：
--
作者：
XU, Y
在本研究中，发现普通话的声调在跑步时与相邻声调是协同发音的。然而，声调因协同发音而偏离其规范形式的程度因声调语境的性质而异。在相邻的音调值一致的情况下(“兼容”的情况)，偏差相对较小。在相邻音调值不一致的情况下，偏差要大得多，有时甚至到了改变动态音调方向的程度。使用自然产生的单词和短语作为声调识别的刺激，以检验对协同发音声调的知觉。然而，它们的语义信息通过波形编辑被移除，而信号中包含的所有音调信息保持不变。在有或没有原始音调语境的情况下，在兼容语境中的音调识别都非常准确。只有当声调被呈现在原始声调语境中时，对冲突语境的声调识别才保持准确。在没有原始语境的情况下，也就是孤立的情况下，正确的声调识别会下降到机会以下。当原始音调语境改变时，听众会补偿改变后的语境，就好像它本来就在那里一样。因此，在语调感知中，听者似乎会补偿由于协同发音而产生的变化。然而，即使在原始语境存在的情况下，对于相容的语境，知觉认同也比对于冲突的语境更好，这表明由于协同发音而产生的差异并不总是被听者完全补偿。
In the present study, the distinctive tones of Mandarin were found to coarticulate with adjacent tones in running speech. However, the amount of deviation of a tone from its canonical form due to coarticulation varied depending on the nature of the tonal context. In a context where adjacent tonal values agree (a ''compatible'' context), the deviation was relatively small. In a context where adjacent tonal values disagree (a ''conflicting'' context), the deviation was much greater, sometimes even to the extent of changing the direction of a dynamic tone. To examine the perception of coarticulated tones, naturally produced words and phrases were used as stimuli for tone identification. However, their semantic information was removed through waveform editing while all the tonal information contained in the signal remained intact. Identification of tones in the compatible context was highly accurate with or without the original tonal context. Tonal identification for the conflicting context remained accurate only when the tones were presented with the original tonal context. Without the original context, i.e., in isolation, correct tone identification dropped below chance. When the original tonal context was altered, listeners compensated for the altered context as if it had been there originally. It thus seems that, in tone perception, listeners compensate for variations due to coarticulation. Nevertheless, even with the presence of the original context, perceptual identification was better for the compatible context than for the conflicting context, indicating that variation due to coarticulation is not always completely compensated for by listeners.