YAZAWA Kakeru

Affiliation
Institute of Humanities and Social Sciences
Official title
Assistant Professor
ORCID
0000-0002-0528-6103
URL
Email
/J2K2H2]<2<6CF]83Tc_F]EDF<F32]24];A
Research fields
Linguistics
Foreign language education
Research keywords
Phonetics
Phonology
Second language acquisition
Corpus linguistics
Computational modeling
English
Japanese
Research projects
Understanding the mastery of multiple languages and dialects2025-08 -- 2028-07Paola EscuderoAustralian Research Council/Discovery Projects60,000,000Yen
Mechanisms for comprehending different English accents: focus on Asian and African varieties2021-04 -- 2026-03Mariko KondoJapan Society of for the Promotion of Science/Grants-in-Aid for Scientific Research (B)16,120,000Yen
Building pre- and post-study abroad speech database of Japanese speakers' English2022-04 -- 2027-03Kakeru YazawaJapan Society of for the Promotion of Science/Grant-in-Aid for Early-Career Scientists3,770,000Yen
Corpus-based investigation of L1 phonetic drift and L2 proficiency2020-04 -- 2024-03Kakeru YazawaJapan Society for the Promotion of Science/Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists2,470,000Yen
L2LP-based modeling of the perception of second language and foreign accented speech2018-04 -- 2020-03Kakeru YazawaJapan Society for the Promotion of Science/Grant-in-Aid for JSPS Fellows900,000Yen
Computational modeling of native and non-native perception of foreign-accented speech2017-11 -- 2018-03Kakeru YazawaJapan Society for the Promotion of Science/JSPS Overseas Challenge Program for Young Researchers1,100,000Yen
Career history
2021-09 -- (current)Waseda UniversitySchool of International Liberal Studies,Adjunct lecturer
2021-05 -- 2026-04University of TsukubaFaculty of Humanities and Social SciencesAssistant Professor (Tenure-Track)
2021-03 -- (current)Waseda UniversityInstitute of Language and Speech ScienceAdjunct Researcher
2025-08 -- 2025-08Western Sydney UniversityThe MARCS Institute for Brain, Behaviour and DevelopmentInternational Visiting Fellow
2020-08 -- 2023-03RIKEN Center for Brain ScienceLaboratory for Language DevelopmentAdjunct Researcher
2020-09 -- 2021-03Waseda UniversitySchool of International Liberal StudiesAssistant Professor (Non-Tenure-Track）
2020-04 -- 2021-03Hosei UniversityFaculty of LettersAdjunct Lecturer
2019-04 -- 2020-08Waseda UniversitySchool of International Liberal StudiesResearch Associate
2018-04 -- 2019-03Japan Society for the Promotion of ScienceResearch Fellow (DC2)
2014-01 -- 2019-03RIKEN Brain Science InstituteLaboratory for Language DevelopmentResearch Assistant
more...
Academic background
2016-04 -- 2020-03Waseda Univeristy Graduate School of International Culture and Communication Studies (PhD)
2014-04 -- 2016-03Waseda Univeristy Graduate School of International Culture and Communication Studies (MA)
2010-04 -- 2014-03Waseda Univeristy School of International Liberal Studies (BA)
2011-08 -- 2012-08University of Alberta
Degree
2020-03Doctor of Philosophy in International Culture and Communication StudiesWaseda University
2016-03Master of Arts in International Culture and Communication StudiesWaseda University
2014-03Bachelor of Arts in International Liberal StudiesWaseda University
Academic societies
2024-04 -- (current)Association for Laboratory Phonology
2018-07 -- (current)International Phonetic Association
2017-04 -- (current)The Japan Second Language Association
2016-04 -- (current)The Phonetic Society of Japan
Honors & Awards
2023-11Young Faculty Encouragement Award (Dean's Award)
2015-10Oriental COCOSDA 2015 Best Student Oral Paper Award
2014-03Excellent Senior Thesis Paper
Articles
Books
Conference, etc.
  • Beyond “L1” vs. “L2”: Understanding the mastery of multiple languages and dialects
    YAZAWA Kakeru
    MARCS Research Meeting/2025-08-19
  • Corpus-based investigation of English speakers’ production of Japanese lexically (un)accented words].
    矢澤 翔
    The 38th General Meeting of the Phonetic Society of Japan/2024-09-29
  • Patterns of misaccentuation of unaccented words in English speakers’ Japanese
    Yazawa Kakeru
    CorpusPhon/2024-06-26
  • More foreign-accented but more comprehensible: Attrition and amelioration of L1 speech in proficient L2 learners
    Yazawa Kakeru
    Linguistics Colloquium at Seoul National University/2024-03-29
  • Bidirectional influences between L1 accentedness/comprehensibility and L2 proficiency
    Yazawa Kakeru
    International workshop on speech assessment and native and non-native linguistic variation: Trends and methods/2023-10-06
  • An evaluation of the phonetic balance of the Harvard-NGSL sentences
    矢澤 翔
    The 37th General Meeting of the Phonetic Society of Japan/2023-09-17
  • L2 proficiency predicts L1 accentedness and comprehensibility
    Yazawa Kakeru
    ICPhS 2023/2023-08-09
  • Harvard-NGSL sentences for English learner speech corpora
    Yazawa Kakeru
    O-COCOSDA 2022/2022-11-24
  • Investigating vowel productions with Japanese-English speech corpus
    Yazawa Kakeru
    DaSiC 5/2022-01-20
  • L1 phonetic drift in vowel production by Japanese learners of English
    矢澤 翔
    The 35th General Meeting of the Phonetic Society of Japan/2021-09-26
  • Transfer of phonological neutralization: A case of /ei/ and /ou/ in Japanese
    矢澤翔
    J-SLA 2020/2021-03-27
  • Transferred lengthening of /ei/ and /ou/ in Japanese speakers’ English
    矢澤翔
    The 34th General Meeting of the Phonetic Society of Japan/2020-09-27
  • A feature-based account of new L2 category formation
    矢澤 翔
    New Sounds 2019/2019-09-01
  • Acoustic characteristics of Japanese short and long vowels: Formant displacement effect revisited
    矢澤 翔
    ICPhS 2019/2019-08-06
  • Perception of Japanese vowel length by Australian English listeners
    矢澤 翔
    ICPhS 2019/2019-08-05
  • Phonemic and featural modeling of new L2 sound acquisition
    矢澤 翔
    HISPhonCog 2019/2019-05-24
  • Developmental paths of English high vowel production by Japanese speakers
    矢澤翔
    ICPEAL 17 - CLDC 9/2018-10-19
  • Acquisition of English high front vowels /i:, I/ by native Japanese speakers
    矢澤翔
    The 32nd General Meeting of the Phonetic Society of Japan/2018-09-15
  • Using the J-AESOP L2 English speech corpus: A case study of the acquisition of English /i:/-/I/ by Japanese speakers
    矢澤翔
    J-SLA 2018/2018-06-16
  • Predicting Australian English speakers’ perception of unfamiliar Japanese vowels
    矢澤翔
    CoEDL Fest 2018/2018-02-05
  • Effects of phrase-final lengthening on English speakers’ manifestation of lexical accent in Japanese
    矢澤翔
    GALA 2017/2017-09-09
  • Modelling Japanese speakers’ perceptual learning of English /iː/ and /ɪ/ within the L2LP framework
    矢澤翔
    PTLC 2017/2017-08-10
  • The role of input frequency in L2 speech perception
    矢澤翔
    J-SLA 2017/2017-06-03
  • Acoustic realization of down- step in English speakers’ Japanese
    矢澤翔
    The 30th General Meeting of the Phonetic Society of Japan/2016-09-18
  • A study of the production of unstressed vowels by Japanese speakers of English using the J-AESOP corpus
    矢澤翔
    The 18th Oriental COCOSDA/CASLRE/2015-10-29
  • more...
Teaching
2025-10 -- 2026-02Graduation Thesis (English Linguistics)University of Tsukuba.
2025-10 -- 2025-12Studies in Foreign Language Education DUniversity of Tsukuba.
2025-04 -- 2025-06Studies in Foreign Language Education CUniversity of Tsukuba.
2025-10 -- 2026-02Studies in English Linguistics-bUniversity of Tsukuba.
2025-04 -- 2025-08Studies in English Linguistics-aUniversity of Tsukuba.
2025-10 -- 2025-12English Phonology and Morphology (1)-bUniversity of Tsukuba.
2025-04 -- 2025-06English Phonology and Morphology (1)-aUniversity of Tsukuba.
2025-10 -- 2025-12Project Practice (2B)University of Tsukuba.
2025-04 -- 2025-07Project Practice (2A)University of Tsukuba.
2025-10 -- 2025-12Project Practice (1B)University of Tsukuba.
more...
Other educational activities
2024-07 -- 2024-07"Introduction to English Phonetics" (Visiting Lecture)Chiba Prefectural Naruto High School
2023-12 -- 2023-12"Why Study a Foreign Language in This Era?" (Visiting Lecture)Kumamoto Prefectural Toryo High School
Professional activities
2025-03 -- (current)International Conference on Phonetic Variation: Diversity within and across Languages (ICPhoV)Scientific Committee
2022-04 -- 2025-03PHONETIC SOCIETY OF JAPANInternational Exchange Committee
2019-04 -- 2019-08Waseda UniversityNew Sounds 2019 Local Organizing Committee
Other activities
2025-09 -- 2025-09Organizer (Tsukuba Empirical Linguistics and Language Sciences Workshop）
2024-10 -- 2024-10TGSW2024 Session Organizer ("Second Language Acquisition Research under East-Asian Native Speakers' Context")
2023-10 -- 2023-10Organizer (International Workshop on Phonetic and Phonological Processing and Learning)
2022-01 -- 2022-01Organizer (International Workshop on Recent Advancement in Phonetic and Phonological Research）
2023-03 -- 2023-12Hosting Visiting Research Fellow (Prof. James Whang, Seoul National University, South Korea)

(Last updated: 2026-02-14)