de Manrique A M, Massone M I
J Acoust Soc Am. 1981 Apr;69(4):1145-53. doi: 10.1121/1.385694.
This paper examines the acoustic properties of Argentine Spanish fricatives and the spectral cues in recognition of these consonants. It was observed that [s] spectrally peaks around 5000 and 8000 Hx, [formula: see text] around 2500 and 5000 Hz, [f] around 1500 and 8500 Hz, [x] around 1000 and 4000 Hz and [ç] around 2000 and 4000 Hz. The perceptual importance of each of these spectral peaks was determined by filtering and synthesis experiments. With regard to the voice fricatives: [beta, ŏ, Y, Y, 3] the analysis showed periodic components with an F1 of similar frequency and a variable F2. Noise components with an F1 of similar frequency and a variable F2. Noise components were principally observed in [3]. Voiced fricatives proved to be shorter than voiceless ones. The analysis of fricatives in consonant-vowel syllables suggested that both the friction and vocalic portions may provide relevant acoustic cues. Tape-splicing experiments, designed to test this observation, showed that except for [x] and [Y], all Spanish fricatives were accurately identified by the friction portion alone. However, it was also observed that in transitionless syllables the vocalic portion affected the phonetic identification of the friction portion. This phenomenon pointed to the perceptual relevance of the transition in some combinations of fricatives and vowels.
本文研究了阿根廷西班牙语擦音的声学特性以及识别这些辅音时的频谱线索。研究发现，[s]的频谱峰值在5000和8000赫兹左右，[公式：见正文]在2500和5000赫兹左右，[f]在1500和8500赫兹左右，[x]在1000和4000赫兹左右，[ç]在2000和4000赫兹左右。通过滤波和合成实验确定了这些频谱峰值各自的感知重要性。关于浊擦音：[β, ŏ, Y, Y, 3]分析表明存在具有相似频率的F1和可变F2的周期性成分。具有相似频率的F1和可变F2的噪声成分。主要在[3]中观察到噪声成分。浊擦音被证明比清擦音短。对辅音 - 元音音节中擦音的分析表明，摩擦部分和元音部分都可能提供相关的声学线索。为测试这一观察结果而设计的磁带拼接实验表明，除了[x]和[Y]之外，仅通过摩擦部分就能准确识别所有西班牙语擦音。然而，还观察到在无过渡音节中，元音部分会影响摩擦部分的语音识别。这种现象表明在某些擦音和元音组合中过渡具有感知相关性。
