Schenk Barbara S, Baumgartner Wolf-Dieter, Hamzavi Jafar S
ENT Department, University of Vienna, Waehringer Guertel 18-20, AT-1090 Vienna, Austria.
ORL J Otorhinolaryngol Relat Spec. 2003 May-Jun;65(3):184-8. doi: 10.1159/000072257.
Since auditory feedback is partially restored after cochlear implantation, the aim of the present study was to investigate features of vowels, which reflect improvements in speech production. Ten postlingually deafened subjects (5 male/5 female) were recorded reading a German text before and 3 and 12 months after implantation, respectively. Selected vowels were analysed regarding the fundamental frequency (F(0)), the formant frequencies (F(1), F(2), F(3)) and the vowel space (difference between F(1) and F(2) in hertz). The F(0) decreased only descriptively after 3 and 12 months, respectively. F(1) of the vowel /e/ was significantly lower after 12 months (411 +/- 20 compared to 349 +/- 25 Hz, p < or = 0.05) and for /o/ after 3 months (446 +/- 29 compared to 408 +/- 31 Hz, p < or = 0.05) for the male patients: their vowel space also expanded significantly for the vowel /o/ (372 +/- 37 compared to 467 +/- 32 Hz, p < or = 0.05) after 12 months. Regained auditory feedback after cochlear implantation had an effect on the improvement of the production of vowels.
由于人工耳蜗植入后听觉反馈部分恢复，本研究旨在调查反映语音产生改善情况的元音特征。分别记录了10名语后聋受试者（5名男性/5名女性）在植入前、植入后3个月和12个月阅读德文文本的情况。对所选元音的基频（F(0)）、共振峰频率（F(1)、F(2)、F(3)）和元音空间（F(1)和F(2)之间以赫兹为单位的差值）进行了分析。F(0)在3个月和12个月后仅呈描述性下降。男性患者中，/e/元音的F(1)在12个月后显著降低（411±20赫兹，而之前为349±25赫兹，p≤0.05），/o/元音的F(1)在3个月后显著降低（446±29赫兹，而之前为408±31赫兹，p≤0.05）：12个月后，/o/元音的元音空间也显著扩大（372±37赫兹，而之前为467±32赫兹，p≤0.05）。人工耳蜗植入后恢复的听觉反馈对元音发音的改善有影响。
