Liu Hanjun, Ng Manwa L
Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, PR China.
J Voice. 2009 Mar;23(2):255-60. doi: 10.1016/j.jvoice.2007.09.002. Epub 2007 Dec 21.
With the use of the pharyngoesophageal (PE) segment as the neoglottis in esophageal speakers, their voice quality becomes significantly different from that of laryngeal speakers. The present study investigated the characteristics of the vocal tract resonance in Mandarin esophageal speakers. The first three formant frequencies of vowels /a, epsilon, i, [see in text], u, y/ produced by seven superior esophageal and seven laryngeal speakers of Mandarin were obtained. For each formant, the formant frequencies measured from the medial 80% of the vowel portion were averaged, and data obtained from esophageal speakers were compared with that obtained from laryngeal speakers. The results indicated that esophageal speakers were associated with significantly higher formant frequencies (F(1), F(2), and F(3)) and a significantly diminished vowel space circumscribed by the three corner vowels /i/, /a/, and /u/ when compared with laryngeal speakers. The findings that formant frequency changes across vowels were systematic and similar for esophageal and laryngeal speakers are consistent with those previously reported in English. It can be concluded that vocal tract transmission has been changed in esophageal speakers of Mandarin after laryngectomy.
在食管发音者中使用咽食管（PE）段作为新声门时，他们的嗓音质量与喉发音者的嗓音质量有显著差异。本研究调查了汉语食管发音者声道共振的特征。获取了7名汉语食管发音者和7名喉发音者发出的元音/a、ε、i、[文本中查看]、u、ü/的前三个共振峰频率。对于每个共振峰，对从元音部分中间80%测量得到的共振峰频率进行平均，并将食管发音者获得的数据与喉发音者获得的数据进行比较。结果表明，与喉发音者相比，食管发音者的共振峰频率（F1、F2和F3）显著更高，并且由三个角元音/i/、/a/和/u/界定的元音空间显著减小。食管发音者和喉发音者的共振峰频率在不同元音间的变化具有系统性且相似，这一发现与先前英语研究报道的结果一致。可以得出结论，喉切除术后汉语食管发音者声道的传导发生了改变。
