Christensen J M, Weinberg B, Alfonso P J
J Speech Hear Res. 1978 Mar;21(1):56-62. doi: 10.1044/jshr.2101.56.
The voice onset times (VOT) of a large number of stop-consonant initiated syllables produced by esophageal and normal speakers were measured. Esophageal speakers systematically varied VOT during the production of speech-sound categories with the same manner of production. Average voice onset times associated with the production of prevocalic voiceless stops of esophageal speakers were significantly shorter than those of normal speakers, while takler-group comparisons associated with the production of voiced prevocalic stops were nonsignificant. Voice onset times of both esophageal and normal speakers were differentially sensitive to place of articulation. Findings are discussed in terms of furthering current understanding of how effectively esophageal speakers achieve important phonological contrasts.
测量了大量由食管发声者和正常发声者发出的以塞音开头的音节的语音起始时间（VOT）。食管发声者在发出具有相同发音方式的语音类别时，会系统地改变VOT。食管发声者发出的元音前清塞音的平均语音起始时间明显短于正常发声者，而在发出元音前浊塞音时，两组之间的比较无显著差异。食管发声者和正常发声者的语音起始时间对发音部位的敏感度不同。根据进一步理解食管发声者如何有效地实现重要的音位对比来讨论这些发现。
