McCloy Daniel R, Wright Richard A, Souza Pamela E
Lang Speech. 2015 Sep;58(Pt 3):371-86. doi: 10.1177/0023830914559234.
This study investigates the relative effects of talker-specific variation and dialect-based variation on speech intelligibility. Listeners from two dialects of American English performed speech-in-noise tasks with sentences spoken by talkers of each dialect. An initial statistical model showed no significant effects for either talker or listener dialect group, and no interaction. However, a mixed-effects regression model including several acoustic measures of the talker's speech revealed a subtle effect of talker dialect once the various acoustic dimensions were accounted for. Results are discussed in relation to other recent studies of cross-dialect intelligibility.
本研究调查了说话者特定变异和基于方言的变异对言语可懂度的相对影响。来自美国英语两种方言的听众，对每种方言的说话者说出的句子进行了噪声环境下的言语任务。初始统计模型显示，说话者或听众方言组均无显著影响，也没有交互作用。然而，一个包含说话者语音多种声学测量指标的混合效应回归模型显示，一旦考虑到各种声学维度，说话者方言就会产生细微影响。结合其他近期关于跨方言可懂度的研究对结果进行了讨论。
