Cuenca M H, Barrio M M
Phonetics Laboratory, University of Seville, Spain.
Clin Linguist Phon. 2010 Nov;24(11):859-69. doi: 10.3109/02699206.2010.511404.
Prosodic information aids segmentation of the continuous speech signal and thereby facilitates auditory speech processing. Durational and pitch variations are prosodic cues especially necessary to convey prosodic boundaries, but alaryngeal speakers have inconsistent control over acoustic parameters such as F0 and duration, being as a result noisy and less intelligible than normal speech. This case study has investigated whether one Spanish alaryngeal speaker proficient in both oesophageal and tracheoesophageal speech modes used the same acoustic cues for prosodic boundaries in both types of voicing. Pre-boundary lengthening, F0-excursions and pausing (number of pauses and position) were measured in spontaneous speech samples, using Praat. The acoustic analysis has revealed that the subject has relied on a different combination of cues in each type of voicing to convey the presence of prosodic boundaries.
韵律信息有助于对连续语音信号进行分割，从而促进听觉语音处理。时长和音高变化是传达韵律边界特别必要的韵律线索，但无喉者对诸如基频（F0）和时长等声学参数的控制并不一致，因此其语音比正常语音嘈杂且清晰度更低。本案例研究调查了一位精通食管语音和气管食管语音模式的西班牙无喉者在两种发声方式中是否使用相同的声学线索来表示韵律边界。使用Praat软件，在自发语音样本中测量了边界前延长、F0偏移和停顿（停顿次数和位置）。声学分析表明，该受试者在每种发声方式中依靠不同的线索组合来传达韵律边界的存在。
