Amsterdam Center for Language and Communication, University of Amsterdam, Spuistraat 210, 1012VT Amsterdam, The Netherlands.
J Acoust Soc Am. 2011 Jul;130(1):416-28. doi: 10.1121/1.3592242.
This paper examines four acoustic properties (duration F0, F1, and F2) of the monophthongal vowels of Iberian Spanish (IS) from Madrid and Peruvian Spanish (PS) from Lima in various consonantal contexts (/s/, /f/, /t/, /p/, and /k/) and in various phrasal contexts (in isolated words and sentence-internally). Acoustic measurements on 39 speakers, balanced by dialect and gender, can be generalized to the following differences between the two dialects. The vowel /a/ has a lower first formant in PS than in IS by 6.3%. The vowels /e/ and /o/ have more peripheral second-formant (F2) values in PS than in IS by about 4%. The consonant /s/ causes more centralization of the F2 of neighboring vowels in IS than in PS. No dialectal differences are found for the effect of phrasal context. Next to the between-dialect differences in the vowels, the present study finds that /s/ has a higher spectral center of gravity in PS than in IS by about 10%, that PS speakers speak slower than IS speakers by about 9%, and that Spanish-speaking women speak slower than Spanish-speaking men by about 5% (irrespective of dialect).
本文考察了马德里伊比利亚西班牙语（IS）和利马秘鲁西班牙语（PS）在不同辅音环境（/s/、/f/、/t/、/p/和/k/）和不同短语环境（孤立单词和句子内部）中单元音的四个声学特性（时长 F0、F1 和 F2）。对 39 名说话者的声学测量结果进行了平衡，这些说话者的性别和方言均有所不同，可推广到以下两个方言之间的差异：
PS 中的元音/a/比 IS 中的低 6.3%。
PS 中的元音/e/和/o/比 IS 中的第二共振峰（F2）值更偏后，约为 4%。
在 IS 中，辅音/s/会导致相邻元音的 F2 更加集中，而在 PS 中则不然。
在短语环境的影响方面，没有发现任何方言差异。
除了元音的方言差异之外，本研究还发现 PS 中的/s/比 IS 中的高约 10%，PS 说话者的语速比 IS 说话者慢约 9%，西班牙语女性说话者的语速比西班牙语男性说话者慢约 5%（与方言无关）。
