Last update August, 2011

 

Carlos Toshinori Ishi, PhD in Engineering                                                       

Speech Science and Technology Researcher

 

 

Office Address

 

ATR – IRC (Intelligent Robotics and Communication) Laboratories

2-2-2 Hikaridai “Keihanna Science City”

Kyoto 619-0288, JAPAN

Phone: +81-774-95-2457              Fax:  +81-774-95-1408

E-mail： carlos at atr dot jp

 

 

Academic background

 

 

Doctor course      Oct./1998 ~ Sep./2001  (Japan)

University of Tokyo （Graduate School of Engineering – Dept. of Information and Communication Engineering）

PhD dissertation: "Japanese Prosody Analysis and its Application for Computer-Aided Language Learning (CALL) Systems".  With the aim of constructing a CALL system that can detect pronunciation errors reliably, acoustic-prosodic features on linguistic features of Japanese, such as tokushuhaku (special morae), mora rhythm, accent and intonation, were investigated in the production and perception viewpoints.

 

 

Master course      Jan./1997 ~ Feb./1998  (Brazil)

"Instituto Tecnológico de Aeronáutica" （Electronic Engineering – Dept. of Telecommunications）

Master thesis: "Analysis of Brazilian Portuguese Phonemes for Speech Recognition".  Acoustic properties of Brazilian Portuguese phonemes were analyzed for automatically segmentation purposes.  Neural networks were also implemented for discriminating some devoiced vowels frequent in phrase finals in Brazilian Portuguese.

 

 

College                Jan./1992 ~ Dec./1996　(Brazil)

"Instituto Tecnológico de Aeronáutica" （Electronic Engineering）

BA thesis: "DSP-Implementation of an Isolated Word Speech Recognition System".  A DTW-based algorithm using mel-cepstral coefficients as features was implemented in DSP Assembly language for recognition of isolated words.

 

 

High-school         Jan./1987 ~ Dec./1990　(Brazil)

"Colégio Industrial Liceu de Artes e Ofícios de São Paulo" （Electronic Technical school）

 

 

 

Vocational background

 

 

ATR/IRC Labs.

Jan. 2005 ~

Research in Speech Science and Technology for Verbal and Non-Verbal Communication in Communication Robots

- Acoustic analysis of vocal fry in pressed voice (“rikimi”):  Proposal of an algorithm for automatic detection of vocal fry.

- Use of prosodic and voice quality parameters for automatic extraction of paralinguistic information (speech acts, attitudes, emotions).

- Use of prosodic and linguistic cues for automatic detection of turn-taking and dialog acts.

- Evaluation of robust speech recognition system for communication robots in real environments (Joint work with ATR/SLC Labs.)

- Acoustic and electro-glottographic analysis of pressed voice and other voice qualities.

- Analysis of head motions and linguistic and paralinguistic information carried by speech.

- Head motion control in humanoid robots (androids)

- Sound source localization and utterance interval detection using microphone arrays; sound environment.

- Audio-visual speech interval detection.

- Integration of speech recognition and paralinguistic information extraction (speech act recognition).

- Robust F0 extraction.

- Speech-driven lip motion generation for teleoperation of humanoid robots.

 

 

JST/CREST at ATR/HIS Labs.

Feb. 2002 ~ Dec. 2004

- Research in Speech Science and Technology for Expressive Speech Processing

- Acoustic-prosodic analysis of expressive speech: Principal Component Analysis on global acoustic features and impressions about emotional states, attitudes, and speaking styles.

- Analysis focused on pitch movements of phrase finals à Automatic identification of phrase final tones.

- Acoustical analysis of creaky voice à Automatic detection of creaky segments

- Acoustical analysis of breathy/whispery voices à Automatic detection of aspiration noise segments

- Development of algorithms for automatic speech utterance detection, algorithms for pitch extraction, software for prosodic labeling tools.

 

 

ITA-LASD

Jan. 1997 ~ Feb. 1998

Implementation of software in assembly for Digital Signal Processors

- ADPCM algorithms for audio compression, using ADSP-21XX processors

- FFT-based algorithms for telephone tone detection, using Motorola ESM processors

 

 

Matec

Jan. 1991 ~ Jan. 1992

Repair of broken Telephone exchange plaques, power supplier modules, and telephone devices.

 

 

Grants

 

- 科学研究費補助金 若手研究A（Apr. 2011 ~ Mar. 2014）“韻律・声質の動的特徴および形態素・品詞を考慮した発話意図認識システムの構築”

- 科学研究費補助金 若手研究A（Apr. 2008 ~ Mar. 2011）“発話音声に伴う頭部動作および表情と言語・パラ言語情報との関連構造の構築”

- 科学研究費補助金 若手研究A（Apr. 2006 ~ Mar. 2008）“韻律と声質を考慮した発話スタイルの検出機構の構築と実環境への適用”

- 文部省国費留学生奨学金 (Apr. 1998 ~ Sep. 2001)

 

 

Lecture

2008 ~

Visitant Professor（非常勤講師）at Osaka Prefecture University（大阪府立大学）“Advanced Intelligent Media Processing” （“知能メディア処理特論”）

 

 

Language skills

 

- Native language: Brazilian Portuguese

- Second languages: Japanese, English.

 

 

Programming skills

 

- C++, Basic, Pascal

- Visual C++, Visual Basic, JAVA

- Matlab

- Assembly (Analog Devices ADSP-21XX, Motorola ESM, 386)

 

 

Research interests

 

Current research topics:

- Analysis of head motions and speech in spoken dialogue:  automatic generation of head motions from speech.

- Analysis of laryngeal voice qualities:  automatic detection of creaky voice; automatic detection of aspiration noise in breathy and whispery voices.

- Mapping between prosodic + voice quality features and linguistic and paralinguistic functions (intentions, emotions, and attitudes) in Japanese.

- Transcription of prosodic events: automatic extraction of perceptually meaningful prosodic events for automatic prosody labeling: focus on phrase final prosody and voice quality.

- Pitch perception: Correspondence between acoustically observed F0 and perceived pitch movements.

- Robust F0 extraction.

- Multi-modal dialogue processing.

- Lip motion generation/synchronization for humanoid robots (including androids) based on speech acoustics.

- Head motion generation from speech acoustics and linguistic information.

 

Topics related to Robot Audition

- Microphone array for audio source localization and separation.

- Improvement of speech recognition and understanding in noisy environments.

- Utterance interval detection based on sound directivity.

- Utterance interval detection based on audio-visual information.

 

Other topics of interest:

 

Topics related to Speech perception and recognition

- Auditory representation of speech signals: acoustic parameters related to auditory perception; masking functions.

- Prosodic modeling applied to recognition of linguistic and paralinguistic information

 

Topics related to Speech Production and Synthesis

- Mapping between physiological and acoustic features for laryngeal voice quality control

- Prosodic control and voice quality control for Speech Synthesis

 

 

 

List of publications

 

Journal Papers

Ishi, C.T., Ishiguro, H., Hagita, N. (2010). Analysis of the roles and the dynamics of breathy and whispery voice qualities in dialogue speech. EURASIP Journal on Audio, Speech, and Music Processing 2010, ID 528193, 1-12 Jan. 2010.

Ishi, C.T., Ishiguro, H., Hagita, N. (2008). Automatic extraction of paralinguistic information using prosodic features related to F0, duration and voice quality. Speech Communication 50(6), 531-543, June 2008.

Ishi, C.T., Matsuda, S., Kanda, T., Jitsuhiro, T., Ishiguro, H., Nakamura, S., Hagita, N. (2008). A robust speech recognition system for communication robots in noisy environments. IEEE Transactions on Robotics, Vol. 24, No. 3, 759-763, June 2008.

Ishi, C.T., Sakakibara, K-I., Ishiguro, H., Hagita, N. (2008). A method for automatic detection of vocal fry. IEEE Transactions on Audio, Speech and Language Processing, Vol. 16, No. 1, 47-56, Jan. 2008.

Ishi, C.T. (2006), The functions of phrase final tones in Japanese: Focus on turn-taking. Journal of Phonetic Society of Japan, Vol. 10 No.3, 18-28, Dec. 2006.

石井カルロス寿憲，榊原健一，石黒浩，萩田紀博 (2006) Vocal Fry発声の自動検出法. 電子情報通信学会論文誌ＤVol. J89-D, No. 12, 2679-2687, Dec. 2006.

石井カルロス寿憲，石黒浩，萩田紀博 (2006) 韻律および声質を表現した音響特徴と対話音声におけるパラ言語情報の知覚との関連. 情報処理学会論文誌Vol. 47, No. 6, 1782-1793, June 2006.

Ishi, C.T. (2005) Perceptually-related F0 parameters for automatic classification of phrase final tones. IEICE Trans. Inf. & Syst., Vol. E88-D, No. 3, 481-488

Ishi, C.T., Hirose, K. & Minematsu, N. (2003). Mora F0 representation for accent type identification in continuous speech and considerations on its relation with perceived pitch values. Speech Communication, Vol. 41, Nos. 2-3, 441-453

 

Invited article

石井カルロス寿憲 (2010) ATRのコミュニケーションロボットにおける聴覚および音声理解に関する研究課題, 日本ロボット学会誌, Vol. 28, No. 1, pp. 27-30, Jan.2010.

 

PhD dissertation

Ishi, C.T. (2001). “Japanese prosody analysis and its applications to Computer-Aided Language Learning systems,” PhD dissertation, University of Tokyo, Sep. 2001.

 

Journal letter

Ishi, C.T. (2004). “Analysis of autocorrelation-based parameters in creaky voice,” Acoustical Science and Technology, Vol. 25, No. 4, 299-302.

 

International Conference Papers

Ishi, C., Dong, L., Ishiguro, H., and Hagita, N. (2011). “The effects of microphone array processing on pitch extraction in real noisy environments,” Proc. of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2011), accepted.

Ishi, C., Liu, C., Ishiguro, H. and Hagita, N. (2011). “Speech-driven lip motion generation for tele-operated humanoid robots,” Proc. International Conference on Auditory-Visual Speech Processing (AVSP2011), accepted.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2011). “Analysis of acoustic-prosodic features related to paralinguistic information carried by interjections in dialogue speech,” Proceedings of The 12th Annual Conference of the International Speech Communication Association (Interspeech’ 2011), accepted.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2011). “Improved acoustic characterization of breathy and whispery voices,” Proceedings of The 12th Annual Conference of the International Speech Communication Association (Interspeech’ 2011), accepted.

Ishi, C., Dong, L., Ishiguro, H., and Hagita, N. (2010). “Sound interval detection of multiple sources based on sound directivity,” Proc. of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2010), 1982-1987.

Ishi, C., Sato, M., Lao, S., and Hagita, N. (2010). “Real-time audio-visual voice activity detection for speech recognition in noisy environments,” Proc. International Conference on Auditory-Visual Speech Processing (AVSP2010), 81-84.

Heracleous, P., Sato, M., Ishi, C., and Hagita, N. (2010). “Investigating the role of the Lombard reflex in visual and audiovisual speech recognition,” Proc. International Conference on Auditory-Visual Speech Processing (AVSP2010), 69-72.

Even, J., Ishi, C., Saruwatari, H., Hagita, N. (2010). “Close speaker cancellation for suppression of non-stationary background noise for hands-free speech interface” Proc. of The 11th Annual Conference of the International Speech Communication Association (Interspeech2010).

Ishi, C., Ishiguro, H., and Hagita, N. (2010). “Acoustic, electroglottographic and paralinguistic analyses of “rikimi” in expressive speech,” Proceedings of Speech Prosody 2010 (SP2010), ID 100139, 1-4.

Ishi, C.T., Liu, C., Ishiguro, H., and Hagita, N. (2010). “Head motion during dialogue speech and nod timing control in humanoid robots,” Proceedings of IEEE/RSJ Human Robot Interaction (HRI 2010), 293-300.

Ishi, C.T., Chatot, O., Ishiguro, H., and Hagita, N. (2009). “Evaluation of a MUSIC-based real-time sound localization of multiple sound sources in real noisy environments,” Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2009), 2027-2032.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2008). “Analysis of inter- and intra-speaker variability of head motions during spoken dialogue,” Proceedings of the International Conference on Auditory-Visual Speech Processing 2008 (AVSP’ 2008), 37-42.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2008). “The meanings of interjections in spontaneous speech,” Proceedings of The 9th Annual Conference of the International Speech Communication Association (Interspeech’ 2008), 1208-1211.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2008). “The roles of breathy/whispery voice qualities in dialogue speech,” Proceedings of Speech Prosody 2008, 45-48.

Ishi, C.T., Haas, J., Wilbers, F.P., Ishiguro, H., and Hagita, N. (2007). “Analysis of head motions and speech, and head motion control in an android,” Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2007), 548-553.

Wilbers, F.P., Ishi, C.T., Ishiguro, H. (2007). “A blendshape model for mapping facial motions to an android,” Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2007), 542-547.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2007). “Analysis of head motions and speech in spoken dialogue,” Proceedings of The 8th Annual Conference of the International Speech Communication Association (Interspeech’ 2007), 670-673.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2007). “Acoustic analysis of pressed phonation,” Proceedings of International Conference on Phonetic Sciences (ICPhS’2007), 2057-2060.

Ishi, C.T., Matsuda, S., Kanda, T., Jitsuhiro, T., Ishiguro, H., Nakamura, S., and Hagita, N. (2006). “Robust speech recognition system for communication robots in real environments,” Proceedings of 2006 IEEE-RAS International Conference on Humanoid Robots (Humanois’06), 340-345.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2006). “Evaluation of prosodic and voice quality features on automatic extraction of paralinguistic information,” Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2006), 374-379.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2006). “Analysis of prosodic and linguistic cues of phrase finals for turn-taking and dialog acts,” Proceedings of The Ninth International Conference of Speech and Language Processing 2006 (Interspeech’2006 - ICSLP), 2006-2009.

Ishi, C.T., Ishiguro, H., and Hagita, N. (2006). “Using Prosodic and Voice Quality Features for Paralinguistic Information Extraction,” CD-ROM Proceedings of The 3rd International Conference on Speech Prosody (SP2006).

Ishi, C.T., Ishiguro, H., and Hagita, N. (2005). “Proposal of Acoustic Measures for Automatic Detection of Vocal Fry,” Proceedings of The 9th European Conference on Speech Communication and Technology (Interspeech’ 2005 - Eurospeech), 481-484.

Ishi, C.T. (2004). “A New Acoustic Measure for Aspiration Noise Detection,” Proceedings of The 8th International Conference of Speech and Language Processing 2004 (ICSLP 2004), Vol. II, 941-944.

Ishi, C.T. (2004). “Analysis of Autocorrelation-based parameters for Creaky Voice Detection,” Proceedings of The 2nd International Conference on Speech Prosody (SP2004), 643-646.

Ishi, C.T., Mokhtari, P., and Campbell, N. (2003). “Perceptually-related acoustic-prosodic features of phrase finals in spontaneous speech,” Proceedings of The 8th European Conference on Speech Communication and Technology (Eurospeech' 03), 405-408.

Mokhtari, P., Pfitzinger, H. R. and Ishi, C. T. (2003). “Principal components of glottal waveforms: towards parameterisation and manipulation of laryngeal voice-quality,” Proceedings of the ISCA Tutorial and Research Workshop on "Voice Quality: Functions, Analysis and Synthesis" (Voqual'03), 133-138.

Ishi, C.T., Campbell, N. (2002). “Analysis of Acoustic-Prosodic Features of Spontaneous Expressive Speech,” Proceedings of 1st International Congress of Phonetics and Phonology, 19.

Ishi, C.T., Hirose, K., Minematsu, N. (2002). “Using Perceptually-related F0- and Power-based Parameters to Identify Accent Types of Accentual Phrases,” Proceedings of 1st International Conference on Speech Prosody (SP2002), 407-410.

Ishi, C.T., Minematsu, N., Hirose, K., Nishide R. (2001). “Identification of Accent and Intonation in sentences for CALL systems,” Proceedings of The 7th European Conference on Speech Communication and Technology (Eurospeech'01), 2455-2458.

Ishi, C.T., Minematsu, N., Hirose, K. (2001). “Recognition of accent and intonation types of Japanese using F0 parameters related to human pitch perception,” Proceedings of ISCA Tutorial and Research Workshop on Prosody in Speech Recognition and Understanding, 71-76.

Ishi, C.T., Minematsu, N., Hirose, K. (2001). “Investigation on perceived pitch and observed F0 features to represent Japanese pitch accent patterns,” Proceedings of International Conference of Speech Processing, 437-442.

Ishi, C.T., Hirose, K. & Minematsu, N. (2000). “Identification of Japanese Double-Mora Phonemes Considering Speaking Rate for the Use in CALL Systems,” Proceedings of The 6th International Conference of Speech and Language Processing 2000 (ICSLP 2000), Vol. I, 786-789.

Watanabe, M. & Ishi, C.T. (2000). “The distribution of fillers in lectures in the Japanese Language,” Proceedings of The 6th International Conference of Speech and Language Processing 2000 (ICSLP 2000), vol. III, 167-170.

Ishi, C.T. & Hirose, K. (2000). “Influence of speaking rate on segmental duration and its formulation for the use in CALL systems,” Proceedings of Integrating Speech Technology In Language Learning 2000 (InSTiL 2000), 106-108.

Kawai, G & Ishi, C.T. (1999). “A system for learning the pronunciation of Japanese Pitch Accent,” Proceedings of The 6th European Conference on Speech Communication and Technology (Eurospeech' 99), Vol.1, 177-181.

 

 

国内学会・研究会発表論文 (Non-refereed domestic conferences and workshops)

石井カルロス寿憲、石黒浩、萩田紀博 (2011)“気息音発声の音響的表現の改善”　日本音響学会2010年春季研究発表会, Vol. I, 269-270.

石井カルロス寿憲、梁棟、石黒浩、萩田紀博 (2010) “ロボットの実環境におけるピッチ抽出に関する考察” 人工知能学会ＡＩチャレンジ研究会 (SIG-Challenge-10), 36-40.

石井カルロス寿憲、佐藤幹、秋本高明、萩田紀博 (2010) “コミュニケーション知能における音声認識モジュール群に関する一考察”　日本ロボット学会学術講演会、ID RSJ2010AC3P3-6.

石井カルロス寿憲、新井潤、萩田紀博 (2010)“対話音声に出現する感動詞における発話意図認識の試み”　日本音響学会2010年秋季研究発表会, Vol. I, 251-252.

石井カルロス寿憲，梁棟，石黒浩，萩田紀博 (2010) “音の指向性を利用した複数音源の発話区間検出の検討” 日本音響学会2010年春季研究発表会, Vol. I, 731-734.

石井カルロス寿憲，梁棟，石黒浩，萩田紀博 (2009) “MUSIC空間スペクトログラムを用いた複数音源の発話区間検出の検討”第30回 人工知能学会 AIチャレンジ研究会 (SIG-Challenge-09), 8-13.

石井カルロス寿憲，石黒浩，萩田紀博 (2009) “声質の変化がもたらすパラ言語情報の分析” 日本音響学会2009年秋季研究発表会, Vol. I, 475-476.

石井カルロス寿憲，石黒浩，萩田紀博 (2009) “声質に関連する音響パラメータの分析” 日本音響学会2009年秋季研究発表会, Vol. I, 327-328.

石井カルロス寿憲，Olivier Chatot，石黒浩，萩田紀博 (2009) “実環境におけるMUSIC法を用いた3次元音源定位の評価” 第28回 人工知能学会 AIチャレンジ研究会 (SIG-Challenge-08).

石井カルロス寿憲，Olivier Chatot，石黒浩，萩田紀博 (2009) “3次元空間での音源方向推定の実環境における評価およびリアルタイム性の評価” 日本音響学会2009年春季研究発表会, Vol. I, 699-702.

石井カルロス寿憲，石黒浩，萩田紀博 (2008) “自然発話に現れる感動詞の発話スタイルと機能の分析” 日本音響学会2008年秋季研究発表会, Vol. I, 269-270.

石井カルロス寿憲，石黒浩，萩田紀博 (2008) “Breathy/whispery発声の音響特徴と音声コミュニケーションにおける役割” 電子情報通信学会技術研究報告, Vol. 108, No. 116, 127-132.

石井カルロス寿憲，石黒浩，萩田紀博 (2008) “Breathy/whispery発声の音声コミュニケーションにおける役割” 日本音響学会2008年春季研究発表会, Vol. I, 357-358.

石井カルロス寿憲，石黒浩，萩田紀博 (2007) “発話音声に関わる頭部動作の分析及びアンドロイドロボットの頭部制御” 第26回 人工知能学会 AIチャレンジ研究会 (SIG-Challenge-07), 46-51.

石井カルロス寿憲，石黒浩，萩田紀博 (2007) “発話音声に伴う頭部動作の分析” 日本音響学会2007年秋季研究発表会, Vol. I, 109-110.

石井カルロス寿憲，石黒浩，萩田紀博 (2007) “ＥＧＧを用いた「りきみ」発声の音響分析” 日本音響学会2007年春季研究発表会, Vol. I, 221-222.

Ishi. C.T., Ishiguro, H., Hagita, N. (2006) “Acoustic analysis of pressed voice,” Fourth Joint Meeting: ASA and ASJ, J. Acoust,. Soc, Am., Vol. 120, No. 5, Pt. 2, pp. 3374, Nov. 2006.

石井カルロス寿憲，松田繁樹，神田崇行，實廣貴敏，石黒浩，中村哲，萩田紀博 (2006)“コミュニケーションロボットの音声認識システムの実環境における評価”第24回人口知能学会ＡＩチャレンジ研究会 (SIG-Challenge-06), 23-28.

 

石井カルロス寿憲，石黒浩，萩田紀博 (2006)“りきみの自動検出のための音響分析” 電子情報通信学会技術研究報告，Vol. 106，No. 178，1-6.

石井カルロス寿憲，石黒浩，萩田紀博 (2006)“喉頭を力んだ発声の音響特徴の分析” 日本音響学会2006年春季研究発表会，Vol. I，227-228.

石井カルロス寿憲，石黒浩，萩田紀博 (2005)“対話音声における韻律と声質の特徴を利用したパラ言語情報の抽出の検討”第22回人口知能学会ＡＩチャレンジ研究会（SIG-Challenge-05），71-76.

石井カルロス寿憲，石黒浩，萩田紀博 (2005)“韻律と声質に関連する音響パラメータを用いたパラ言語情報の抽出の検討”日本音響学会2005年秋季研究発表会，233-234.

石井カルロス寿憲 (2004)“母音区間の息漏れに関連する音響パラメータの検討” 日本音響学会2004年秋季研究発表会，Vol. I，295-296.

石井カルロス寿憲，ニック・キャンベル (2004)“句末の機能的役割”日本音響学会2004年春季研究発表会，Vol. I，235-236.

Mokhtari, P., Pfitzinger, H. R., Ishi, C. T. and Campbell, N. (2004). "Laryngeal voice quality conversion by glottal waveshape PCA", in Proceedings of the Spring­2004 Meeting of the Acoustical Society of Japan, Atsugi, Japan, Paper 2-P-6, pp.341-342.

石井カルロス寿憲 (2003)“Creaky発声の音響的特徴の分析” 日本音響学会2003年秋季研究発表会，Vol. I，235-236.

Ishi, C.T., Campbell, N. (2003). “Acoustic-Prosodic Analysis of Phrase Finals in Expressive Speech,” Proceedings of The 1st JST/CREST International Workshop on Expressive Speech Processing, 85-88.

石井カルロス寿憲，ニック・キャンベル (2003)“日常会話における句末の音響･韻律的特徴の分析”日本音響学会2003年春季研究発表会，Vol. I，311-312.

石井カルロス寿憲，ニック・キャンベル (2002)“表現豊かな発話様式の韻律的特徴の分析”日本音響学会2002年秋季研究発表会，Vol. I，275-276

 

Ishi, C.T., Hirose, K., Minematsu, N. (2002). “Investigations on a quantified representation of pitch movements in syllable units,” Proceedings of The 2002 Spring Meeting of the Acoustical Society of Japan, Vol. I, 419-420.

石井カルロス寿憲，峯松信明，広瀬啓吉 (2001)“ピッチ知覚に対応したモーラピッチの自動抽出”日本音声学会全国大会予稿集，13-18.

石井カルロス寿憲，峯松信明，広瀬啓吉 (2001)“日本語のアクセント･イントネーションにおけるピッチ知覚と対応したモーラピッチの自動抽出”日本音響学会2001年秋季研究発表会，Vol. I，445-446.

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