Job title：
Assistant Professor
Other affiliations (2)：
Waseda University
Institute of Language and Speech Science
Guest Researcher
Waseda University
School of International Liberal Studies
Adjunct Lecturer
Research field (2)：
Foreign language education
, Linguistics
Research keywords (6)：
Phonetics
, Phonology
, Japanese
, English
, Corpus linguistics
, Second language acquisition
Research theme for competitive and other funds (5)：
2022 - 2027 Building pre- and post-study abroad speech database of Japanese speakers' English
2021 - 2025 Mechanisms for comprehending different English accents: Focus on Asian and African varieties
2020 - 2024 Corpus-based investigation of L1 phonetic drift and L2 proficiency
2018 - 2020 L2LP-based modeling of the perception of second language and foreign accented speech
2017 - 2018 Computational modeling of native and non-native perception of foreign-accented speech
Papers (28)：
Kakeru Yazawa. NEW sounds can be easier to learn than SIMILAR sounds, but only when acoustic cues are FAMILIAR. Tsukuba English Studies. 2024. 42. 305-325
Kakeru Yazawa, James Whang, Mariko Kondo, Paola Escudero. Feature-driven new sound category formation: Computational implementation with the L2LP model and beyond. Frontiers in Language Sciences. 2023. 2. 1-19
Kakeru Yazawa, James Whang, Paola Escudero. Australian English listeners’ perception of Japanese vowel length reveals underlying phonological knowledge. Frontiers in Psychology. 2023. 14. 1-14
Kakeru Yazawa. An evaluation of the phonetic balance of the Harvard-NGSL sentences. Proceedings of the 37th General Meeting of the Phonetic Society of Japan. 2023. 108-113
James Whang, Kakeru Yazawa. Modeling a phonotactic approach to segment recovery: The case of Japanese high vowels. Studies in phonetics, phonology and morphology. 2023. 29. 2. 271-295
The Cambridge Handbook of Bilingual Phonetics and Phonology
Cambridge University Press 2024
Lectures and oral presentations (24)：
More foreign-accented but more comprehensible: Attrition and amelioration of L1 speech in proficient L2 learners
(Linguistics Colloquium at Seoul National University 2024)
Bidirectional influences between L1 accentedness/comprehensibility and L2 proficiency
(International workshop on speech assessment and native and non-native linguistic variation: Trends and methods 2023)
An evaluation of the phonetic balance of the Harvard-NGSL sentences
(The 37th General Meeting of the Phonetic Society of Japan 2023)
L2 proficiency predicts L1 accentedness and comprehensibility
(ICPhS 2023 2023)
Harvard-NGLS sentences for English learner speech corpora
(O-COCOSDA 2022 2022)
