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http://dx.doi.org/10.13064/KSSS.2021.13.4.009

Learning acoustic cue weights for Korean stops through L2 perception training  

Oh, Eunjin (Department of English Language and Literature, Ewha Womans University)
Publication Information
Phonetics and Speech Sciences / v.13, no.4, 2021 , pp. 9-21 More about this Journal
Abstract
This study investigated whether Korean learners improve acoustic cue weights to identify Korean lenis and aspirated stops in the direction of native values through perception training that focused on contrasting the stops in various phonetic contexts. Nineteen native Chinese learners of Korean and two native Korean instructors for the perception training participated in the experiment. A training group and a non-training group were divided according to pretest results, and only the training group participated in the training for 5 days. To estimate the perceptual weights of the stop cues, a pretest and a posttest were conducted with stimuli whose stop cues (F0 and VOT) were systematically manipulated. Binary logistic regression analyses were performed on each learner's test results to calculate perceptual β coefficients, which estimate the perceptual weights of the acoustic cues used in identifying the stop contrast. The training group showed a statistically significant increase of 0.451 on average in the posttest for the coefficient values of the F0, which is the primary cue for the stop contrast, whereas the non-training group showed an insignificant increase of 0.246. The patterns of change in the F0 use after training varied considerably among individual learners.
Keywords
perception training; acoustic cue weight; Korean lenis and aspirated stop; F0; VOT; Chinese;
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