Second formants in fricatives: Acoustic consequences of fricative‐vowel coarticulation
Second formants in fricatives: Acoustic consequences of fricative‐vowel coarticulation
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摩擦音中的第二共振峰：摩擦音-元音协同发音的声学后果
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
S. Soli
中科院分区：
文献类型：
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作者：
S. Soli
对80个语音语料进行了擦音[s，z，F，z]的频谱分析。在每个元音上下文中产生的每个摩擦音的五个话语的平均LPC频谱显示可靠的预期元音协同发音效果存在至少30-60 ms前元音开始的频谱峰的形式附属于第二共振峰的元音。峰值频率在1.5至2 kHz之间，前元音[i]之前比后元音[a，u]之前高出约100-300 Hz。在摩擦音频谱中这些峰的存在表明，在摩擦音的后半部分中，收缩开始在元音的预期中打开，并且因此，第二共振峰共振被激发。这些摩擦共振峰的声学特性变化的功能，元音上下文由于不同的预期coarticulation的元音。公司简介
Spectral analyses of the sibilant fricatives, [s, z, F, z], as spoken in isolation and in initial position before the vowels [a, i, u], were performed for a corpus of 80 utterances. The mean LPC spectra for five utterances of each fricative produced in each vowel context revealed reliable anticipatory vowel coarticulation effects present at least 30–60 ms before vowel onset in the form of spectral peaks affiliated with the second formant of the vowel. Peak frequencies were between 1.5 and 2 kHz and were approximately 100–300 Hz higher before the front vowel [i] than before the back vowels [a, u]. The presence of these peaks in the fricative spectra indicate that during the latter part of the fricative the constriction begins to open in anticipation of the vowel, and, as a consequence, second formant resonances are excited. The acoustic characteristics of these fricative formants varied as a function of vowel context due to differences in the anticipatory coarticulation of the vowel. Fricative place of con...