Ross J
Institute for Perception Research (IPO), Eindhoven, The Netherlands.
J Acoust Soc Am. 1992 Jun;91(6):3532-9. doi: 10.1121/1.402842.
Formant frequencies in an old Estonian folk song performed by two female voices were estimated for two back vowels /a/ and /u/, and for two front vowels /e/ and /i/. Comparison of these estimates with formant frequencies in spoken Estonian vowels indicates a trend of the vowels to be clustered into two sets of front and back ones in the F1/F2 plane. Similar clustering has previously been shown to occur in opera and choir singing, especially with increasing fundamental frequency. The clustering in the present song, however, may also be due to a tendency for a mid vowel to be realized as a higher-beginning diphthong, which is characteristic of the North-Estonian coastal dialect area where the singers come from. No evidence of a "singer's formant" was found.
对一首由两位女性演唱的爱沙尼亚古老民歌中的两个后元音/a/和/u/以及两个前元音/e/和/i/的共振峰频率进行了估计。将这些估计值与爱沙尼亚语元音的共振峰频率进行比较，结果表明，在F1/F2平面上，元音有聚集成前后两组的趋势。此前已证明，在歌剧和合唱中也会出现类似的聚类现象，尤其是随着基频的增加。然而，在这首歌曲中出现的聚类现象，也可能是由于中元音倾向于被实现为起始较高的双元音，这是歌手们来自的爱沙尼亚北部沿海方言区的特征。未发现“歌手共振峰”的证据。
