• Japanese voicing contrast (L1 Production)

The acoustic cues of Japanese voicing contrast seem to have been changing. If that is the case, which acoustic cues do they enhance when they need to disambiguate minimal pairs of voicing contrast? I have started this study so that I can use the insights from the results for the L2 perception study (see below). 

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Iwamoto, K., Kawaoto, L., & de Jong, K. J. (under revision) Maximizing voicing contrast in modern Tokyo Japanese across the word-initial and intervocalic position and pitch contexts: The effect of phonological focus on pre-voicing, aspiration, and f0 cue.

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• Japanese voicing contrast (L2 Perception)

The effect of the lexical function of pitch in L1 on cue weighting strategies for L2 segmental contrast. ​​​

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Iwamoto, K., & Darcy, I. (in press). Native speakers’ redundant acoustic cue may be learners’ treasure: Can pitch be repurposed? Proceedings of the 14th annual Pronunciation in Second Language Learning and Teaching Conference. West Lafayette, Indiana, United States.

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