用Praat比较分析英语学习者和英语母语人士的元音发音的声学特征

摘要

We extract formants F1, F2 of each vowel, compares four different groups of subjects pronunciation. Comparative study shows that:1) [ɔ:] is the sound closer to native speakers pronounce of English learners. 2) Judging from the relative number, non English speaking professionals do better in the mouth opening and tongue level, English professionals do better in the tongue and lips around the round exhibition. 3) From the plot, the subjects are not good to distinguish between [i:] and [i], [ɔ] and [ɔ:], [u] and [u:], [e] and [æ]. This study gives the advice to improve their pronunciation.%我们提取每个元音的共振峰F1、F2，做了四组不同受试人发音的对比。对比研究表明：1)[ɔ：]是受试的男女英语学习者都发的比较接近母语人士发音的音。2)从相对数量来看，非英语专业人士在开口度和舌位高低方面做的比较好，英语专业人士在舌位前后和唇形圆展方面做的比较好。3)从散点图来看，受试者不能很好的区分[i：]和[i]，[ɔ]和[ɔ：]，[u]和[u：]，[e]和[æ]的差异。本研究给出了提高英语学习者发音水平的建议。