Department of Linguistics and TESOL, University of Texas at Arlington, Arlington, Texas 76019,
JASA Express Lett. 2023 Jul 1;3(7). doi: 10.1121/10.0019996.
This study investigates imitation of English /s/ to determine whether speakers converge toward normalized or raw acoustic targets. Participants exposed to increased spectral mean (SM) raised SM, converging toward both the raw acoustics of the model talker (who had high baseline SM) and the pattern of increased SM. However, after exposure to decreased SM, direction of shift depended on participant baseline. All participants converged to the raw acoustic values of the model talker, increasing or decreasing their own SM accordingly. These results suggest imitation is not necessarily mediated by perceptual normalization to different talkers, and raw acoustics can be the target of phonetic imitation. This has theoretical implications for the perception-production link and methodological implications for analysis of convergence studies.
本研究通过模仿英语/s/，旨在确定说话者是否会向标准化或原始声学目标靠拢。研究参与者接触到更高的频谱均值（SM）后，提高了 SM，向模型说话者的原始声学（具有较高的基线 SM）和增加 SM 的模式靠拢。然而，在接触到较低的 SM 后，变化的方向取决于参与者的基线。所有参与者都向模型说话者的原始声学值靠拢，相应地增加或减少他们自己的 SM。这些结果表明，模仿不一定受到对不同说话者的感知归一化的影响，原始声学可以成为语音模仿的目标。这对感知-产生联系具有理论意义，对融合研究分析具有方法学意义。
