Performance information

• Prosodic Features of Japanese Emotional Expressions using One-word Utterance “n”－Results of a preliminary survey by native Japanese speakers－　　　　　　　　　　　　　　　
  Lae Lae Htun; SHIMAMURA Tetsuya; SONU Mee
  Proceedings of the Technical Committee on Speech Communication, Volume：3, Number：2, First page：n/a, Feb. 2023
  Our aim was to understand the scientific features of emotional expressions in Japanese by native and non-native speakers. Specifically, this study focused on how non-native speakers recognize the emotional expression of native speakers and vice versa. As a first attempt, the present study analyzed various emotional expressions using the one-word utterance “n” by young female native Japanese speakers. Based on the preliminary survey, the results of the analysis showed three types of F0 dynamic patterns in “n.” Positive and agreeable emotions of “n” exhibited the “Rise and Fall” pattern, negative emotions of “n”exhibited the “Gradual Fall” pattern, whereas doubtful emotions of “n” exhibited the “Rise” pattern. The minimum frequency of F0 did not considerably differ in all these emotions, whereas the maximum frequency of F0 was high for all emotions except negative emotions. These results suggest that the F0 movement may be related to emotional expression, that is, positive and negative.
  The Technical Committee on Speech Communication,the Acoustical Society of Japan, Japanese
  DOI：https://doi.org/10.60274/asjsc.sc-2023-9
  DOI ID：10.60274/asjsc.sc-2023-9, eISSN：2758-2744
• 知覚特徴量に基づく日本語学習者の促音聴取難易度推定
  張琰龍; 中嶋秀治; 鮮于媚; 加藤宏明; 匂坂芳典
  Volume：41, Number：41, First page：59, Last page：68, Sep. 2017, [Reviewed], ［Internationally co-authored］
  Japanese, Scientific journal
• 中国人日本語学習者による促音時間制御特性の分析
  張琰龍; 鮮于媚; 加藤宏明; 匂坂芳典
  Volume：8, Number：8, First page：280, Last page：295, Aug. 2017, [Reviewed], ［Internationally co-authored］
  Japanese, Scientific journal
• L2 speech timing analysis based on L1 timing characteristics　　　　　　　　　　　　　　　
  Yanlong Zhang; Hiroaki Kato; Mee Sonu; Yoshinori Sagisaka
  2016 Conference of the Oriental Chapter of International Committee for Coordination and Standardization of Speech Databases and Assessment Techniques, O-COCOSDA 2016, First page：227, Last page：231, May 2017, [Reviewed]
  Aiming at a better understanding of L2 learning problems resulting from L1 and L2 timing control differences, we analyzed the differences in generation of geminate and singleton consonants which has been known to be a L2 learning problem between Japanese natives and Chinese learners. These differences were analyzed by applying tempo normalization to raw segmental duration measurements. To get a systematic understanding of L2 learners' time control characteristics, speech data of learners with different proficiency and syllable structures was employed. Analyses clearly showed that (1) timing control differences between natives and L2 learners gradually decrease as the learners language proficiency increases, (2) the differences between natives and L2 speakers show big variations depending on the syllable structure and (3) timing control differences can be understood based on timing unit differences between morae and syllables. Based on those findings, preliminary results of a novel training method that provides additional moraic context to isolated speech samples are being presented and showed the effectiveness.
  Institute of Electrical and Electronics Engineers Inc., English, International conference proceedings
  DOI：https://doi.org/10.1109/ICSDA.2016.7919016
  DOI ID：10.1109/ICSDA.2016.7919016, SCOPUS ID：85020223302
• The bias toward geminate consonant perception in Japanese by Korean native listeners –In relation to perceptual assimilation of tense obstruent consonants in Korean--　　　　　　　　　　　　　　　
  M. Sonu; H. Kato; K. Tajima; T. Arai
  Proc. Spring Meet. Acoust. Soc. Jpn., First page：1401, Last page：1404, Mar. 2017
  Japanese, Research society
• Analysis on L2 learners' perception errors between geminate and singleton of Japanese consonants using loudness related parameters.　　　　　　　　　　　　　　　
  Yanlong Zhang; Mee Sonu; Hiroaki Kato; Yoshinori Sagisaka
  2015 International Conference Oriental COCOSDA held jointly with 2015 Conference on Asian Spoken Language Research and Evaluation (O-COCOSDA/CASLRE)(O-COCOSDA/CASLRE), First page：186, Last page：189, 2015, [Reviewed]
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/ICSDA.2015.7357889
  Dblp：https://dblp.uni-trier.de/db/conf/ococosda/ococosda2015.html#ZhangSKS15
  Dblp Cross Ref：https://dblp.uni-trier.de/conf/ococosda/2015
  DOI ID：10.1109/ICSDA.2015.7357889, DBLP ID：conf/ococosda/ZhangSKS15, Web of Science ID：WOS:000380425400035
• Sound change of /o/ in modern Seoul Korean: Focused on relations with acoustic characteristics and perception　　　　　　　　　　　　　　　
  Takako Igeta; Mee Sonu; Takayuki Arai
  Journal of the Korean Society of Speech Sciences, Volume：6, Number：3, First page：109, Last page：119, Sep. 2014, [Reviewed]
  Korean Society of Speech Sciences, English, Scientific journal
• Sound change of /o/ in modern Seoul Korean: Focused on relations with acoustic characteristics and perception　　　　　　　　　　　　　　　
  Igeta Takako; Mee Sonu; Takayuki Arai
  Phonetics and Speech Sciences, Volume：6, Number：3, First page：109, Last page：119, Aug. 2014, [Reviewed]
  English, Scientific journal
• Non-native perception and learning of the phonemic length contrast in spoken Japanese: training Korean listeners using words with geminate and singleton phonemes　　　　　　　　　　　　　　　
  Mee Sonu; Hiroaki Kato; Keiichi Tajima; Reiko Akahane-Yamada; Yoshinori Sagisaka
  JOURNAL OF EAST ASIAN LINGUISTICS, Volume：22, Number：4, First page：373, Last page：398, Nov. 2013, [Reviewed]
  To establish an effective training paradigm for a computer-assisted language learning system that enables non-native learners to exploit native-like perceptual cues for identifying length contrasts, e.g., consonant length, in the Japanese language (hereafter, Japanese length contrast), two experiments were conducted to investigate the identification accuracies of native Korean listeners before and after intensive perceptual training. The first experiment assessed the perceptual characteristics that native Korean listeners show when identifying the length contrast in the face of variation in speaking rate. The results suggested that native Korean listeners identify length contrasts by relying on a fixed-length criterion instead of adapting to changes in speaking rate. Also, Korean listeners showed a noticeable bias toward geminate responses for all speaking rates, with a stronger bias for slower speaking rates. The second experiment was based on these perceptual characteristics of Korean listeners. It investigated the extent to which intensive training helps improve listeners' ability to identify Japanese length contrast and to examine whether greater stimulus variability during training leads to more robust training effects. The overall results showed that the perceptual training improved Korean listeners' ability to perceive consonant length contrast. Moreover, misidentification of geminates decreased at post-test. However, the effect of training did not differ greatly between conditions of high stimulus variability during training (training with three speaking rates) and low stimulus variability (training with a single speaking rate). Training also did not generalize to perception of untrained contrast type (vowel length contrast). These results suggest that while perceptual training helps Korean learners learn a new, difficult-to-learn L2 phonemic length contrast, it is still difficult for learners to acquire native-like perceptual criteria.
  SPRINGER, English, Scientific journal
  DOI：https://doi.org/10.1007/s10831-013-9107-1
  DOI ID：10.1007/s10831-013-9107-1, ISSN：0925-8558, eISSN：1572-8560, Web of Science ID：WOS:000326833200004
• Perceptual characteristics of the bias toward geminate consonant perception in Japanese by Korean native listeners: Focusing on the relationship between segmental duration and loudness　　　　　　　　　　　　　　　
  M. Sonu; H. Kato; K. Tajima; T. Arai
  Proc. Spring Meet. Acoust. Soc. Jpn., First page：549, Last page：552, Mar. 2013
  Acoustical Society of Japan, Japanese, Research society
• Vowel onset marker based objective evaluation of Japanese phonemic length contrast produced by non-native speakers　　　　　　　　　　　　　　　
  Mee Sonu; Yanlong Zhang; Hiroaki Kato; Yoshinori Sagisaka
  Proceedings of Meetings on Acoustics, Volume：19, 2013, [Reviewed]
  Aiming at an objective evaluation of second language (L2) learner's Japanese timing control, this study proposes an objective measure to predict a subjective measure of L2 speakers' production given by Japanese native evaluators from the view point of goodness of production. The focus here is on phonemic length contrast, e.g., /kako/ "the past" versus /kakko/ "parentheses" and /kaze/ "wind" versus /kaze:/ "taxation" which is difficult for L2 learners particularly when incorporated with speaking rates. In this present study proposed an objective measure using a vowel onset time marker as a key perceptual and psychoacoustic marker to normalize speaking rate variations. The proposed new measure reflects tempo normalization between L2 learners by dividing the proficiency of mora-timing control in production. The experimental results show that both vowel length contrast and consonant length contrast have a significantly higher correlation with the subjective evaluation score in which the coefficient was stable than using a simple duration difference measure. These results suggest that applying the psychoacoustic parameters would be effective to build up an objective evaluation of L2 learners. © 2013 Acoustical Society of America.
  English, Scientific journal
  DOI：https://doi.org/10.1121/1.4801045
  DOI ID：10.1121/1.4801045, ISSN：1939-800X, SCOPUS ID：84878995141
• Effect of speaking rate variation on the perception of singleton and geminate consonants in Japanese by native and Korean listeners　　　　　　　　　　　　　　　
  Mee Sonu; Takayuki Arai; Keiichi Tajima; Hiroaki Kato
  Proceedings of Meetings on Acoustics, Volume：19, 2013, [Reviewed]
  Perception of phonemic length contrasts in Japanese is difficult for non-native listeners. To better understand the source of this difficulty, the present study investigated native Korean listeners' perception of consonant length contrasts at different speaking rates. Stimuli were created by modifying the duration of the second consonant of /ereC:e/along a continuum to /ereCe/, where C was /k/ or /s/. The base words were spoken by a professionally trained native Japanese speaker with a carrier sentence at three rates, fast, normal, slow. Twenty four native Korean and twelve native Japanese listeners participated in a perception test. They listened to one of the created stimuli and identified whether the second consonant was singleton or geminate. Results show that even though Korean listeners' perceptual boundary position between singleton and geminate consonants shifted according to speaking rate in a similar manner as the natives, their boundary width was more variable and larger than native listeners at all speaking rates. These results suggest that Korean listeners have ambiguous criteria for phonemic length contrasts. Results discussed that the perceptual similarity between intervocalic consonant of Korean and geminate consonant of Japanese. © 2013 Acoustical Society of America.
  English, Scientific journal
  DOI：https://doi.org/10.1121/1.4801003
  DOI ID：10.1121/1.4801003, ISSN：1939-800X, SCOPUS ID：84878991049
• Hands-on speech science exhibition for children at a science museum.
  Takayuki Arai; Kanae Amino; Mee Sonu; Keiichi Yasu; Takako Igeta; Kanako Tomaru; Marino Kasuya
  Third Workshop on Child, Computer and Interaction(WOCCI), First page：104, Last page：107, 2012, [Reviewed]
  ISCA, English, International conference proceedings
  Dblp：https://dblp.uni-trier.de/db/conf/wocci/wocci2012.html#AraiASYITK12
  Dblp Cross Ref：https://dblp.uni-trier.de/conf/wocci/2012
  DBLP ID：conf/wocci/AraiASYITK12
• 日本語の長短母音の聴取訓練と学習効果の検証 −文脈要素が与える影響を中心に−
  鮮于 媚; 田嶋圭一; 加藤宏明; 匂坂芳典
  Volume：52, First page：87, Last page：104, Nov. 2011, [Reviewed]
  Japanese, Scientific journal
• 知覚学習システムを利用した促音の聴取訓練による学習効果の検証 −長短母音の位置およびピッチパターン　　　　　　　　　　　　　　　
  鮮于 媚; 田嶋圭一; 加藤宏明; 匂坂芳典
  Volume：51, First page：37, Last page：52, Aug. 2011, [Reviewed]
  Japanese, Scientific journal
• Perceptual Training of Vowel Length Contrast of Japanese by L2 Listeners: Effects of an Isolated Word versus a Word Embedded in Sentences.　　　　　　　　　　　　　　　
  Mee Sonu; Keiichi Tajima; Hiroaki Kato; Yoshinori Sagisaka
  INTERSPEECH 2011(INTERSPEECH), First page：1137, Last page：1140, 2011, [Reviewed]
  ISCA, International conference proceedings
  Dblp：https://dblp.uni-trier.de/db/conf/interspeech/interspeech2011.html#SonuTKS11
  Dblp Cross Ref：https://dblp.uni-trier.de/conf/interspeech/2011
  DOI ID：10.21437/Interspeech.2011-338, DBLP ID：conf/interspeech/SonuTKS11, Web of Science ID：WOS:000316502200288
• Perceptual Studies of Japanese Geminate Insertion Phenomena Based on Timing Control Characteristics.　　　　　　　　　　　　　　　
  Mee Sonu; Keiichi Tajima; Hiroaki Kato; Yoshinori Sagisaka
  17th International Congress of Phonetic Sciences(ICPhS), First page：1886, Last page：1889, 2011, [Reviewed]
  Dblp：https://dblp.uni-trier.de/db/conf/icphs/icphs2011.html#SonuTKS11
  Dblp Cross Ref：https://dblp.uni-trier.de/conf/icphs/2011
  DBLP ID：conf/icphs/SonuTKS11, CiNii Articles ID：20001705459
• The effect of a word embedded in a sentence and speaking rate variation on the perceptual training of geminate and singleton consonant distinction.　　　　　　　　　　　　　　　
  Mee Sonu; Keiichi Tajima; Hiroaki Kato; Yoshinori Sagisaka
  INTERSPEECH 2010(INTERSPEECH), First page：1850, Last page：1853, 2010, [Reviewed]
  ISCA, International conference proceedings
  Dblp：https://dblp.uni-trier.de/db/conf/interspeech/interspeech2010.html#SonuTKS10
  Dblp Cross Ref：https://dblp.uni-trier.de/conf/interspeech/2010
  DOI ID：10.21437/Interspeech.2010-535, DBLP ID：conf/interspeech/SonuTKS10, Web of Science ID：WOS:000313086500075
• Perceptual studies of Japanese geminate consonants by Korean learners of Japanese -Focused on relations with preceding vowel-　　　　　　　　　　　　　　　
  鮮于媚
  Number：24, First page：89, Last page：103, Dec. 2009
  Scientific journal
• Perceptual training of singleton and geminate stops in Japanese language by Korean learners.　　　　　　　　　　　　　　　
  Mee Sonu; Keiichi Tajima; Hiroaki Kato; Yoshinori Sagisaka
  INTERSPEECH 2009(INTERSPEECH), First page：1747, Last page：1750, 2009, [Reviewed]
  ISCA, International conference proceedings
  Dblp：https://dblp.uni-trier.de/db/conf/interspeech/interspeech2009.html#SonuTKS09
  Dblp Cross Ref：https://dblp.uni-trier.de/conf/interspeech/2009
  DOI ID：10.21437/Interspeech.2009-525, DBLP ID：conf/interspeech/SonuTKS09, Web of Science ID：WOS:000276842800424
• Factors influencing perceptual attainment of Japanese geminate consonants by Korean learners of Japanese.
  Mee Sonu
  ISCA Tutorial and Research Workshop on Experimental Linguistics(ExLing), First page：209, Last page：212, 2008, [Reviewed]
  ISCA, International conference proceedings
  Dblp：https://dblp.uni-trier.de/db/conf/exling/exling2008.html#Sonu08
  Dblp Cross Ref：https://dblp.uni-trier.de/conf/exling/2008
  DBLP ID：conf/exling/Sonu08

• Analysis of F0 contour and duration in spontaneous Japanese speech: Focused on the non-lexcial backchannels　　　　　　　　　　　　　　　
  Htun Lae Lae; Shimamura Tetsuya; Sonu Mee
  Mar. 2025, [Corresponding]
  English, Summary national conference
• The listening comprehension course for advanced learners incorporates retelling and reading aloud ‐An attempt at autonomous learning for pronunciation‐　　　　　　　　　　　　　　　
  Mee SONU
  Number：19, First page：3, Last page：9, Mar. 2025, [Lead]
  Japanese, Report research institution
• 応答表現「それな」の使用実態とその音調の分析ー日本人大学生による生成調査の結果報告ー　　　　　　　　　　　　　　　
  朴 彩恩; 鮮于 媚
  First page：1057, Last page：1060, Sep. 2024, [Corresponding]
  Japanese, Summary national conference
• 応答表現「それな」の使用実態とその音調についての研究ーSNS・アンケート調査および音響分析を通じてー　　　　　　　　　　　　　　　
  朴 彩恩; 鮮于 媚
  First page：31, Last page：34, Apr. 2024, [Corresponding]
  Japanese, Summary national conference
• Microsoft Teamsの「音読練習」機能を利用した初級日本語クラスの口頭練習の予備的調査—A pilot survey of oral practice in Japanese for beginners using Reading Progress in Microsoft Teams for Education　　　　　　　　　　　　　　　
  鮮于 媚
  Number：18, First page：23, Last page：27, Mar. 2024
  Japanese
  ISSN：2187-5871, CiNii Books ID：AA1267535X
• 日本語学習者の言語学習ストラテジーと音声評価の分析 : 上級レベルの中国語母語話者を対象に<研究論文>　　　　　　　　　　　　　　　
  馬 若君; 鮮于 媚
  Number：7, First page：51, Last page：63, Mar. 2023
  本研究は、中国語を母語とする日本語上級学習者の言語学習ストラテジーに関する事情を明らかにすることを目的とし、言語学習ストラテジーと発音評価との関係を調べた。調査は、オンライン上で初対面の母語話者と日本語学習者間で会話を実施、発音学習ストラテジーの調査、専門家による項目別の発音判定調査を行った。調査の結果、自己評価型ストラテジーの項目のうち「自分の発音をいつも意識して発音している。」「自分の発音の弱点をいつも意識している。」というストラテジーと発音評価の間で有意な相関関係があった。この結果は、学習者の意識化が発音評価にも重要であることが示唆される。また、学習ストラテジーや自己評価の結果から、発音学習に対する意欲や自己評価意識は高いものの、具体的な学習方法が定着していないことが分かった。このことから、自己意識化につながる学習方法の開発が必要であることが示される。
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  Japanese
  DOI：https://doi.org/10.24561/0002000228
  DOI ID：10.24561/0002000228, eISSN：2432-857X
• 中国人日本語学習者を対象とした撥音の知覚と生成分析　　　　　　　　　　　　　　　
  鮮于 媚
  Volume：7, Number：7, First page：34, Last page：50, 2023
  本稿は、日本に在住している年少者中国語母語話者で日本語学習者（以下、CJL）を対象に、日本語の撥音の知覚および生成テストを実施、その実態の把握を試みたものである。知覚調査は、発話速度、呈示文脈（単独発話、キャリアセンテンスに挿入）、前後母音、後続子音種の差の条件を取り入れ、実施した。その結果、撥音の前後の母音が/a/ の場合、協力者全員が100% の正答率であった。一方、撥音がないところに撥音があると判断する「撥音の挿入」の誤聴傾向が見られた。生成調査では、「撥音の長さが不十分」と評価され、日本語の撥音を /ŋ/ に撥音する場合が多いと評価された。このことから、CJL は撥音を持続時間長以外の有声軟口蓋鼻音として知覚および生成している可能性が高く、これらの結果は、知覚においては「撥音挿入」、生成においては、「長さが不十分」という評価になったと推測される。今後、鼻音と母音との関係性についてはさらなる調査が必要である。
  text
  application/pdf
  Japanese
  DOI：https://doi.org/10.24561/0002000227
  DOI ID：10.24561/0002000227, eISSN：2432-857X
• 初級日本語クラスの遠隔授業の実践報告 : オンライン口頭練習の一試行—Teaching Japanese to Beginners Through Distance Learning : The First Online Oral Practice Trial　　　　　　　　　　　　　　　
  鮮于 媚
  Number：15, First page：31, Last page：37, Mar. 2021
  Japanese
  ISSN：2187-5871, CiNii Articles ID：40022511170, CiNii Books ID：AA1267535X
• Promoting Learner Autonomy by using Internet-based Japanese Pronunciation Learning Modules : Example applications of Praat, OJAD, and Tsutaeru-Hatsuon　　　　　　　　　　　　　　　
  鮮于 媚
  Number：14, First page：25, Last page：33, Mar. 2020
  Japanese
  ISSN：2187-5871, CiNii Articles ID：40022183550, CiNii Books ID：AA1267535X
• How Can "Role Language" and "Speech Character" be Translated from Japanese? : A Consideration of Foreign Subtitles for the Anime Film Your Name.　　　　　　　　　　　　　　　
  嶋津 拓; 鮮于 媚; 蔡 梅花; 松本 匡史
  Number：14, First page：3, Last page：14, Mar. 2020
  Japanese
  ISSN：2187-5871, CiNii Articles ID：40022183547, CiNii Books ID：AA1267535X
• 人格の入れ替わりを扱ったアニメで使用さ れる人称代名詞はどのように「翻訳」されるのか－『君の名は。』の外国語版字幕を事例 として－　　　　　　　　　　　　　　　
  嶋津拓; 鮮于媚; 蔡梅花; 松本匡史
  Number：12, First page：122, Last page：134, Aug. 2019, [Reviewed]
  Japanese
  CiNii Articles ID：40022054904, CiNii Books ID：AA12695109
• Using a shadowing application in Japanese pronunciation training : An analysis of the outcomes of shadowing among Japanese L2 learners　　　　　　　　　　　　　　　
  鮮于 媚
  Number：13, First page：13, Last page：25, Mar. 2019
  Japanese
  ISSN：2187-5871, CiNii Articles ID：40021839678, CiNii Books ID：AA1267535X
• Shadowing as a means for Learners to Improve Pronunciation in Japanese　　　　　　　　　　　　　　　
  SONU Mee
  The journal of Japanese Language Education Methods, Volume：24, Number：2, First page：44, Last page：45, 2018
  This study investigated how Japanese learners of Japanese as a second language learn pronunciation in Japanese using a shadowing application, with a focus on the effect of shadowing on improving intonation and accent specifically. Thirty-eight participants used a shadowing application individually without explicit instruction. After the experiment, a broad range of F0 movements were observed in participants' speech, which suggests that the characteristics of Japanese intonation (e.g. henoji intonation) can be learned through shadowing.
  Japanese Language Education Methods, Japanese
  DOI：https://doi.org/10.19022/jlem.24.2_44
  DOI ID：10.19022/jlem.24.2_44, ISSN：1881-3968, eISSN：2423-9909, CiNii Articles ID：130007436500
• Prediction of geminate identification difficulties for Japanese L2 learners based on perceptual features　　　　　　　　　　　　　　　
  張 琰龍; 中嶋 秀治; 鮮于 媚; 加藤 宏明; 匂坂 芳典
  研究会報告, Number：41, First page：59, Last page：68, Sep. 2017
  日本語文法研究会, Japanese
  ISSN：1343-7550, CiNii Articles ID：40021539026, CiNii Books ID：AN10264276
• 運用響度特征量的日語学習者促音与非促音的誤聴辨分析 -以漢語母語者為対象-
  張 エン龍; 鮮于 媚; 加藤 宏明; 匂坂 芳典
  Volume：1, First page：286, Last page：293, 2016, [Reviewed], ［Internationally co-authored］
• Analysis on loudness correlation with Japanese geminate perception by non-native speakers　　　　　　　　　　　　　　　
  張 エン龍; 鮮于 媚; 加藤 宏明
  聴覚研究会資料 = Proceedings of the auditory research meeting, Volume：44, Number：9, First page：591, Last page：595, 20 Dec. 2014
  日本音響学会, Japanese
  ISSN：1346-1109, CiNii Articles ID：40020321208, CiNii Books ID：AN00227138
• 学際的研究と音声言語研究(ちょっとしたエッセイ,コーヒーブレーク)　　　　　　　　　　　　　　　
  鮮于 媚
  Volume：69, Number：6, First page：311, Last page：311, 2013
  Japanese
  DOI：https://doi.org/10.20697/jasj.69.6_311_1
  DOI ID：10.20697/jasj.69.6_311_1, ISSN：0369-4232, eISSN：2432-2040, CiNii Articles ID：110009615348, CiNii Books ID：AN00186234
• Perceptual characteristics of Japanese geminate consonants by Korean native listeners : Focusing on the relationship between geminate insertion and Korean intervocalic tense consonants　　　　　　　　　　　　　　　
  鮮于 媚; 田嶋 圭一; 加藤 宏明
  聴覚研究会資料, Volume：42, Number：2, First page：137, Last page：142, 08 Mar. 2012
  日本音響学会聴覚研究委員会, Japanese
  ISSN：1346-1109, CiNii Articles ID：40019248706, CiNii Books ID：AN00227138
• Perceptual characteristics of Japanese geminate consonants by Korean native listeners : Focusing on the relationship between geminate insertion and Korean intervocalic tense consonants　　　　　　　　　　　　　　　
  SONU Mee; TAJIMA Keiichi; KATO Hiroaki; SAGISAKA Yoshinori
  IEICE technical report. Speech, Volume：111, Number：471, First page：7, Last page：12, 01 Mar. 2012
  The present paper reports an investigation into the characteristics of native Korean listeners' identification of geminate and singleton consonants in Japanese. The aim was to understand L2 learners' identification of error patterns and to analyze the cause of identification errors, The investigation especially focused on the relationship between geminate insertion and Korean intervocalic tense consonants. As a first step in this study the first experiment assessed the perceptual criteria that non-native listeners use to identify length contrasts, and these included variations in speaking rate. Results of this experiment indicated that non-native listeners identify length contrast by relying on a fixed-length criterion instead of adapting to speaking rate variation. Specifically, Korean listeners showed a bias toward geminate responses for all speaking rates, although the bias tended to be stronger for a slower speaking rate. This tendency was called the geminate insertion phenomenon. This result suggests that the geminate insertion phenomena are related to the Korean phonological system. Both acoustic and psycho-acoustical factors were used to analyze the characteristics of Korean intervocalic tense consonants. The present study focused on an enpenthetic's' in Korean phonology. The results indicated that the Korean intervocalic tense consonants have assimilated with the Japanese geminate consonants. However, this assimilation may possibly be affected by the perception of volume. These results suggest that 'loudness' is likely to be a crucial factor in understanding the Korean native listeners' mis-identification of Japanese geminate consonants.
  The Institute of Electronics, Information and Communication Engineers, Japanese
  ISSN：0913-5685, CiNii Articles ID：110009546217, CiNii Books ID：AN10013221
• タイミング制御特性に着目した非母語話者の日本語音声の評価―日本語の長短音素を中心に―　　　　　　　　　　　　　　　
  鮮于媚; 張えん龍; 加藤宏明; 匂坂芳典
  音声研究, Volume：16, Number：3, First page：102, Last page：103, 2012
  Japanese
  DOI ID：10.24467/onseikenkyu.16.3_102_3, ISSN：1342-8675, J-Global ID：201302215442956899, CiNii Articles ID：110009578124, CiNii Books ID：AA11148803
• B1-4. タイミング制御特性に着目した非母語話者の日本語音声の評価 : 日本語の長短音素を中心に(研究発表,日本音声学会2012年度(第26回)全国大会発表要旨)　　　　　　　　　　　　　　　
  鮮 于媚; 張 えん龍; 加藤 宏明; 匂坂 芳典
  Volume：16, Number：3, First page：102, Last page：103, 2012
  Japanese
  DOI：https://doi.org/10.24467/onseikenkyu.16.3_102_3
  DOI ID：10.24467/onseikenkyu.16.3_102_3, ISSN：1342-8675, eISSN：2189-5961, CiNii Articles ID：110009578124
• Acoustic characteristics of Korean vowels by Seoul Korean young adult speaker: a study for perception experiment　　　　　　　　　　　　　　　
  井下田 貴子; 鮮于 媚; 荒井 隆行
  聴覚研究会資料, Volume：41, Number：7, First page：541, Last page：545, 01 Oct. 2011
  日本音響学会聴覚研究委員会, Japanese
  ISSN：1346-1109, CiNii Articles ID：40019040873, CiNii Books ID：AN00227138
• 促音挿入現象に着目した非母語音声の知覚特性の分析
  鮮于媚
  First page：491, Last page：492, 2011
  CiNii Articles ID：20000921213
• 日本語特殊拍の知覚学習システムを利用した聴取訓練の効果(第319回研究例会発表要旨)　　　　　　　　　　　　　　　
  鮮于 媚; 田嶋 圭一; 加藤 宏明; 匂坂 芳典
  Volume：13, Number：2, First page：62, Last page：62, 2009
  Japanese
  DOI：https://doi.org/10.24467/onseikenkyu.13.2_62_3
  DOI ID：10.24467/onseikenkyu.13.2_62_3, ISSN：1342-8675, eISSN：2189-5961, CiNii Articles ID：110008722602, CiNii Books ID：AA11148803
• 促音の知覚における先行モーラ及び先行母音の影響(第316回研究例会発表要旨)　　　　　　　　　　　　　　　
  鮮于 媚
  Volume：12, Number：1, First page：70, Last page：70, 2008
  Japanese
  DOI：https://doi.org/10.24467/onseikenkyu.12.1_70_1
  DOI ID：10.24467/onseikenkyu.12.1_70_1, ISSN：1342-8675, eISSN：2189-5961, CiNii Articles ID：110008763257, CiNii Books ID：AA11148803
• The influence of adjacent phonemes on the perception of Japanese geminate(/sokuon/) and singleton stops　　　　　　　　　　　　　　　
  SONU Mee
  IPSJ SIG Notes, Volume：69, Number：129, First page：137, Last page：142, 20 Dec. 2007
  This paper reports research investigating the influence of adjacent phonemes on the perception of Japanese geminate (/sokuon/) and singleton stops. Three questions were examined: 1) What is the relationship between the length of the prior vowel and the perceptual categorization of the geminate/singleton stop? 2) What is the relationship between the prior consonant and the perceptual categorization of the geminate/singleton stop? 3) What are the differences, if any, between the perceptual categorization of Korean learners of Japanese and native speakers? The results of this study demonstrated that there was a compensation effect observed in the perceptual boundaries when the prior vowel was shortened. These results indicate a possibility that the perceptual units of geminate/singleton stops are VC units. It was also determined that the consonant prior to the geminate/singleton stop affected perceptual categorization by native speakers. However, the results of this study suggest that further investigation is necessary before any conclusions can be drawn. Finally, it was determined that native speakers and Korean learners perceive the geminate/singleton stop as part of a VC unit. However, the position of the perceptual boundary is different. This difference is possibly related to compensation.
  Information Processing Society of Japan (IPSJ), Japanese
  ISSN：0919-6072, CiNii Articles ID：110006549563, CiNii Books ID：AN10442647
• The influence of adjacent phonemes on the perception of Japanese geminate(/sokuon/) and singleton stops　　　　　　　　　　　　　　　
  SONU Mee
  IEICE technical report, Volume：107, Number：405, First page：137, Last page：142, 13 Dec. 2007
  This paper reports research investigating the influence of adjacent phonemes on the perception of Japanese geminate (/sokuon/) and singleton stops. Three questions were examined : 1) What is the relationship between the length of the prior vowel and the perceptual categorization of the geminate/singleton stop? 2) What is the relationship between the prior consonant and the perceptual categorization of the geminate/singleton stop? 3) What are the differences, if any, between the perceptual categorization of Korean learners of Japanese and native speakers? The results of this study demonstrated that there was a compensation effect observed in the perceptual boundaries when the prior vowel was shortened. These results indicate a possibility that the perceptual units of geminate/singleton stops are VC units. It was also determined that the consonant prior to the geminate/singleton stop affected perceptual categorization by native speakers. However, the results of this study suggest that further investigation is necessary before any conclusions can be drawn. Finally, it was determined that native speakers and Korean learners perceive the geminate/singleton stop as part of a VC unit. However, the position of the perceptual boundary is different. This difference is possibly related to compensation.
  The Institute of Electronics, Information and Communication Engineers, Japanese
  ISSN：0913-5685, CiNii Articles ID：110006595687, CiNii Books ID：AN10091225
• The influence of adjacent phonemes on the perception of Japanese geminate(/sokuon/) and singleton stops　　　　　　　　　　　　　　　
  SONU Mee
  IEICE technical report, Volume：107, Number：406, First page：137, Last page：142, 13 Dec. 2007
  This paper reports research investigating the influence of adjacent phonemes on the perception of Japanese geminate (/sokuon/) and singleton stops. Three questions were examined : 1) What is the relationship between the length of the prior vowel and the perceptual categorization of the geminate/ singleton stop? 2) What is the relationship between the prior consonant and the perceptual categorization of the geminate/singleton stop? 3) What are the differences, if any, between the perceptual categorization of Korean learners of Japanese and native speakers? The results of this study demonstrated that there was a compensation effect observed in the perceptual boundaries when the prior vowel was shortened. These results indicate a possibility that the perceptual units of geminate/singleton stops are VC units. It was also determined that the consonant prior to the geminate/singleton stop affected perceptual categorization by native speakers. However, the results of this study suggest that further investigation is necessary before any conclusions can be drawn. Finally, it was determined that native speakers and Korean learners perceive the geminate/singleton stop as part of a VC unit. However, the position of the perceptual boundary is different. This difference is possibly related to compensation.
  The Institute of Electronics, Information and Communication Engineers, Japanese
  ISSN：0913-5685, CiNii Articles ID：110006595258, CiNii Books ID：AN10013221
• Perceptual Categorization of /Sokuon/ /Q/ by Korean Japanese Learners : vowel duration and the P-center　　　　　　　　　　　　　　　
  SONU Mee
  IEICE technical report, Volume：107, Number：387, First page：79, Last page：84, 07 Dec. 2007
  This paper reports research investigating the perception of Japanese geminate (/sokuon/)/singleton stops by both Korean learners of the language and native speakers by acoustic analysis. Based on this, three questions were examined : 1) What influence, if any, does the length of the vowel prior to the geminate/singleton stop have on the perceptual boundaries of Japanese native speakers and learners? 2) When the length of the prior vowel is shortened, in what way does this influence the perceptual boundaries? 3) Are the perceptual boundaries influenced differently if the geminate/singleton stop is at the word level or the sentence level (the context)? The results of this study demonstrated that there was a difference in the perception of geminate/singleton perceptual boundaries between Japanese native speakers and Korean learners. In particular, there was a compensation effect observed in the perceptual boundaries when the prior vowel was shortened. Furthermore, it was determined that this compensation effect was influenced by the type of vowel, and the first language of the participants, however, the greatest influence was the context.
  The Institute of Electronics, Information and Communication Engineers, Japanese
  ISSN：0913-5685, CiNii Articles ID：110006549607, CiNii Books ID：AN10449078

• 일본어 음성 교육 : 연구와 실천 = 日本語音声教育 : 研究と実践　　　　　　　　　　　　　　　
  민, 광준; 中川, 千恵子; 木下, 直子; 柳澤, 絵美; 변, 희경; 荒井, 隆行; 선우, 미, [Contributor]
  도서출판 지식나무, Nov. 2023
  Total pages：280p
  CiNii Books：http://ci.nii.ac.jp/ncid/BD05005437
  ISBN：9791187170570, CiNii Books ID：BD05005437
• ilbono iroke gongbuhera　　　　　　　　　　　　　　　
  Mee SONU, [Others]
  Chaek Sarang, Dec. 2013
  General book
  ISBN：9791185440002

• 私の日本語の学習体験からみた第二言語習得理論ー理論と体験は、どのように結び付いたのか－　　　　　　　　　　　　　　　
  鮮于媚
  Jan. 2024, [Invited]
  Japanese
• 音の感性を介した音声学教育の新しい試み　　　　　　　　　　　　　　　
  鮮于媚
  Dec. 2023, [Invited]
  Japanese, Oral presentation
• 韓国語母語話者の生成時に見られる促音挿入について−先行母音のフォルマントおよび子音の持続長を中心に−　　　　　　　　　　　　　　　
  鮮于 媚
  Mar. 2018, [Domestic conference]
  Japanese, Poster presentation
• 日本語学習者に見られる促音への知覚バイアス−韓国語の濃音の知覚的同化の関連性から−　　　　　　　　　　　　　　　
  鮮于媚; 加藤宏明; 田嶋圭一; 荒井隆行
  Mar. 2017, [Domestic conference]
  Japanese, Oral presentation
• Effect of speaking rate variation on the perception of singleton and geminate consonants in Japanese by native and Korean listeners　　　　　　　　　　　　　　　
  Mee Sonu; Takayuki Arai; Keiichi Tajima; Hiroaki Kato
  Proceedings of Meetings on Acoustics, Jun. 2013, [International conference]
  English, Poster presentation
• Vowel onset marker objective evaluation of Japanese phonemic length contrast produced by non-native speakers　　　　　　　　　　　　　　　
  Mee Sonu; Yanlong Zhang; Hiroaki Kato; Yoshinori Sagisaka
  Proceedings of Meetings on Acoustics, Jun. 2013, [International conference]
  English, Poster presentation
• 朗読音声を用いた韓国語後舌母音のフォルマント分析–発話速度による音韻性の変動を中心に–　　　　　　　　　　　　　　　
  井下田貴子; 鮮于媚; 荒井隆行
  2013, [Domestic conference]
  Japanese, Poster presentation
• 韓国語母語話者による促音聴取難易度の分析–音韻環境への依存性を中心に–　　　　　　　　　　　　　　　
  張えん龍; 鮮于媚; 加藤宏明; 匂坂芳典
  2013, [Domestic conference]
  Japanese, Poster presentation
• 韓国語母語話者による日本語の促音への知覚バイアスに関する特性 –音韻時間長とラウドネスの関与の観点から–　　　　　　　　　　　　　　　
  鮮于媚; 加藤宏明; 田嶋圭一; 荒井隆行
  2013, [Domestic conference]
  Japanese, Oral presentation
• 非母語話者の日本語長短音素の時間長制御に対する客観評価—聴知覚特性に基づく指標による解釈—　　　　　　　　　　　　　　　
  鮮于媚; 加藤宏明; 匂坂芳典
  2013, [Domestic conference]
  Japanese, Oral presentation
• ラウドネスの観点からみた日本語の促音と非促音の区分　　　　　　　　　　　　　　　
  鮮于媚; 藤本雅子; 荒井隆行
  2013, [Domestic conference]
  Japanese, Poster presentation
• タイミング制御に着目した非母語話者の日本語音声の評価　　　　　　　　　　　　　　　
  鮮于 媚; 張えん龍; 加藤宏明; 匂坂芳典
  Sep. 2012, [Domestic conference]
  Japanese, Oral presentation
• 促音挿入判断に着目した韓国語母語話者による日本語促音の知覚特性 –韓国語の濃音化との関連性を中心に–　　　　　　　　　　　　　　　
  鮮于媚; 田嶋圭一; 加藤宏明; 匂坂芳典
  Mar. 2012, [Domestic conference]
  Japanese, Oral presentation
• 韓国語の母音発生時に見られる音響的特徴 –先行子音が母音の質に与える影響を中心に–　　　　　　　　　　　　　　　
  井下田貴子; 鮮于媚; 荒井隆行
  2012, [Domestic conference]
  Japanese, Poster presentation
• 韓国語ソウル方言話者による母音の知覚特性とその評価 –先行子音による評価の差に着目して–　　　　　　　　　　　　　　　
  井下田貴子; 鮮于媚; 荒井隆行
  2012, [Domestic conference]
  Japanese, Poster presentation
• 中国語話者の英語発話における韻律特性の分析　　　　　　　　　　　　　　　
  許楽; 中嶋秀治; 鍔木元; 鮮于媚; 匂坂芳典
  2012, [Domestic conference]
  Japanese, Oral presentation
• 韓国若年層ソウル方言話者による母音の音響的特徴ー知覚実験に向けての一考察ー　　　　　　　　　　　　　　　
  井下田貴子; 鮮于媚; 荒井隆行
  Nov. 2011, [Domestic conference]
  Japanese, Poster presentation
• Percpetual training of vowel length contrast of Japanese by L2 listeners: Effect of an isolated word versus a word emvedded in sentences　　　　　　　　　　　　　　　
  Mee Sonu; Keiichi Tajima; Hiroaki Kato; Yoshinori Sagisaka
  ISCA-Proc. Interspeech 2011, Sep. 2011, [International conference]
  English
• Perceptual studies of Japanese geminate insertion phenomena based on timing control characteristics　　　　　　　　　　　　　　　
  Mee Sonu; Keiichi Tajima; Hiroaki Kato; Yoshinori Sagisaka
  Proc. ICPhS 2011, Aug. 2011, [International conference]
  English, Oral presentation
• 促音挿入現象に着目した非母語音声の知覚特性の分析　　　　　　　　　　　　　　　
  鮮于媚; 田嶋圭一; 加藤宏明; 匂坂芳典
  Aug. 2011, [Domestic conference]
  Japanese, Oral presentation
• 韓国若年層ソウル方言話者による母音の音響的特徴-後舌母音の対立を中心に-　　　　　　　　　　　　　　　
  井下田貴子; 鮮于媚; 荒井隆行
  Aug. 2011, [Domestic conference]
  Japanese, Poster presentation
• The effect of a word embedded in a sentence and speaking rate variation on the perceptual training of geminate and singleton consonant distinction　　　　　　　　　　　　　　　
  Mee Sonu; Keiichi Tajima; Hiroaki Kato; Yoshinori Sagisaka
  ISCA-Proc. Interspeech 2010, Sep. 2010, [International conference]
  English, Poster presentation
• 非母語話者による促音の聴取訓練 –呈示文脈における発話速度の多様性の効果–　　　　　　　　　　　　　　　
  鮮于媚; 田嶋圭一; 加藤宏明; 匂坂芳典
  Aug. 2010, [Domestic conference]
  Japanese, Oral presentation
• 促音の聴取訓練によるリスニング学習への般化　　　　　　　　　　　　　　　
  鮮于媚; 田嶋圭一; 加藤宏明; 匂坂芳典
  Jul. 2010, [Domestic conference]
  Japanese, Oral presentation
• Perceptual training of singleton and geminate stops in Japanese language by Korean learners　　　　　　　　　　　　　　　
  Mee Sonu; Keiichi Tajima; Hiroaki Kato; Yoshinori Sagisaka
  ISCA-Proc. Interspeech 2009, Sep. 2009, [International conference]
  English, Poster presentation
• 韓国人日本語学習者による日本語の促音の聴取訓練の効果 –聴取訓練後に見られる生成の般化作用を中心に–　　　　　　　　　　　　　　　
  鮮于媚; 田嶋圭一; 加藤宏明; 匂坂芳典
  Sep. 2009, [Domestic conference]
  Japanese
• 聴取訓練プログラムを利用した促音及び非促音の聴取訓練 –知覚学習スタイルによる有効性の検証–　　　　　　　　　　　　　　　
  鮮于媚; 田嶋圭一; 加藤宏明; 匂坂芳典
  Sep. 2009, [International conference]
  Japanese, Oral presentation
• Factors influencing perceptual attainment of Japanese geminate consonants by Korean learners of Japanese　　　　　　　　　　　　　　　
  Mee Sonu
  ISCA-workshop on Experimental Linguistics, Aug. 2009, [International conference]
  English, Poster presentation
• 韓国語母語話者における日本語特殊拍の聴取訓練条件に関する検討 –発話速度を中心に–　　　　　　　　　　　　　　　
  鮮于媚; 田嶋圭一; 加藤宏明; 匂坂芳典
  Aug. 2009, [Domestic conference]
  Japanese, Oral presentation
• Vowel length vowel effects on the perception of geminate and singleton stop boundaries by Korean learners of Japanese　　　　　　　　　　　　　　　
  Mee Sonu
  Laboratory Phonology11, Jun. 2008, [International conference]
  English, Poster presentation
• 参加型日本語教育の新たな試み –自分を表現するための演劇的コミュニケーション–　　　　　　　　　　　　　　　
  鮮于 媚; 今野成子; 佐藤正則
  Mar. 2008
  Japanese, Poster presentation
• 韓国人日本語学習者の促音の知覚習得順序予測　　　　　　　　　　　　　　　
  鮮于媚
  Mar. 2008, [International conference]
  Japanese
• 韓国人日本語学習者の促音の知覚研究 –先行母音との関係を中心に–　　　　　　　　　　　　　　　
  鮮于媚
  Mar. 2008, [International conference]
  Japanese, Oral presentation
• 先行母音長が促音の知覚に与える影響 –韓国人日本語学習者を対象に–　　　　　　　　　　　　　　　
  鮮于媚
  Jul. 2007, [International conference]
  Japanese, Oral presentation

• 2022

• 日本語音声学習支援を目的とした日本語学習者の知覚学習効果と客観的指標の検討　　　　　　　　　　　　　　　
  01 Apr. 2022 - 31 Mar. 2027
  Grant amount(Total)：4290000, Direct funding：3300000, Indirect funding：990000
  Grant number：22K00786
• Perceptual studies of Japanese geminate insertion phenomena based on timing control characteristics　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), 01 Apr. 2016 - 31 Mar. 2020
  SONU Mee, Principal investigator
  Grant amount(Total)：3250000, Direct funding：2500000, Indirect funding：750000
  Korean listeners show a perceptual bias toward geminate consonants when listening to Japanese. To investigate the reason for the bias toward geminates, perception experiments were conducted. Both stimuli were created by modifying the duration of the second consonant of the nonword “erete” along a continuum. Listeners participated in a single-stimulus, two-alternative forced-choice identification task. Results suggest that Japanese listeners’ identification boundaries systematically shifted due to changes in speaking rate when the stimuli were in the context of a sentence with mixed rates of presentation. Results of Korean native listeners’ boundaries position show that the boundaries of “lenis” and “fortis” in Korea were shorter end than the boundaries of “singleton” and “geminate” in Japanese. Korean listeners’ boundaries shift toward lenis consonants when identifying Japanese stop consonants.
  Competitive research funding, Grant number：16K16837
• Mathematical Modeling of Perception and Acquisition of Temporal Aspects of Speech for Second Language Learners　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), 01 Apr. 2013 - 31 Mar. 2018
  Kato Hiroaki; SAGISAKA YOSHINORI; TAJIMA KEIICHI; SONU MEE; CHOU ENRYU; HIRATA YUKARI, National Institute of Information and Communications Technology
  Grant amount(Total)：4940000, Direct funding：3800000, Indirect funding：1140000
  In order to contribute to learners who learn Japanese as a second language, characteristics related to perception and learning of temporal elements of speech typified by speech rhythms were obtained by empirical methods. This improved the accuracy in objective evaluation using a mathematical model that quantitatively calculates the naturalness of the temporal structures of a given utterance. The results are applicable to wide range of practical usages. For learners of Japanese, for instance, it helps to objectively evaluate their own speech, and for native speakers, it helps to quantitatively evaluate the quality and quantity of communication by analysing given spontaneous conversation from the temporal aspect.
  Grant number：25330223
• Quantitative analysis and the modeling of L2 timing control through the comparison with L1 timing characteristics　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), 01 Apr. 2011 - 31 Mar. 2016
  SAGISAKA Yoshinori; NAKANO Michiko; KONDO Mariko; KATO Hiroaki; Sonu Mee; ZHANG Yanlong; SUN Yue; Kyaw Winthuzar, Waseda University
  Grant amount(Total)：18720000, Direct funding：14400000, Indirect funding：4320000
  Speech generation and perception characteristics have been quantitatively analyzed using the second language (L2) speech data aiming at scientific understanding of them and their applications to L2 education. Using Asian L2 English speech corpus, timing control differences between natives and learners were quantitatively analyzed at Inter Stress Intervals defined as the durations between succeeding stressed syllables. Moreover, by analyzing L2 speech data with Japanese geminate/singleton consonants, neighboring segmental loudness effect on segmental duration perception has been commonly observed in speakers with different L1s. In addition, control differences between Japanese mora-timing and Chinese syllable-timing has been clearly observed in L2 Japanese speech. An experimental L2 speech timing training by enforcing Japanese mora-timing showed the remarkable improvements of L2 learners in the contrastive generation of Japanese geminate/singleton consonants.
  Grant number：23320091
• A cross-linguistic study on the psychological reality of prosodic structure in spoken language　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), 2011 - 2013
  TAJIMA Keiichi; KITAHARA Mafuyu; YONEYAMA Kiyoko; HISAGI Miwako; KATO Hiroaki; MARTIN Andrew; MAZUKA Reiko; SAGISAKA Yoshinori; HUFNAGEL Stefanie Shattuck; SONU Mee; TANAKA Kuniyoshi, Hosei University
  Grant amount(Total)：5070000, Direct funding：3900000, Indirect funding：1170000
  This project investigated how various prosodic units such as moras and syllables affect production and perception of spoken language, and how they are encoded in the mental lexicon. Results showed that Japanese listeners' perception of syllables in spoken English words is not affected by the presence of katakana loanwords that diverge prosodically from the source words. Also, second-language learners' perception of length contrasts in Japanese improves to some extent as a result of perceptual training and language experience, but they have difficulty approaching native-like performance. Finally, the functional load of phonemes, which measures how much each phoneme contributes to distinguishing words, was found to be more useful when it is defined with reference to the prosodic structure of words such as their word accent pattern. Altogether, these results suggest that prosodic units are psychologically real and critically affect perception and production of spoken language.
  Grant number：23520474
• A Modeling of Prosody Perception for Second Language Learning　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), 2008 - 2012
  KATO Hiroaki; SAGISAKA Yoshinori; TSUZAKI Minoru; TAJIMA Keiichi; YAMADA Reiko; SONU Mee; NAKAMURA Shizuka; HANSAKUNBUNTHEUNG Chatchawarn; TANAKA Satomi; AIBA Eriko; HIRATA Yukari
  Grant amount(Total)：18720000, Direct funding：14400000, Indirect funding：4320000
  hrough a series of empirical studies, the present project proposed a model that quantitatively estimates human evaluation of given speech data regarding naturalness or fluency. This model made possible the objective evaluation of a non-native accented voice. These results can contribute to the promotion of effectiveness of so-called computer-assisted language learning/testing framework by providing an element of automatic fluency evaluation.
  Grant number：20300069
• 韓国人日本語学習者の促音の知覚及び生成に関する実験音声学的研究　　　　　　　　　　　　　　　
  2009 - 2010
  Grant amount(Total)：1400000, Direct funding：1400000
  Grant number：09J05072

• 研究者の眼 「防災と外国人」　　　　　　　　　　　　　　　
  Myself, Sep. 2024, [Paper]