Kyushu University Academic Staff Educational and Research Activities Database
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Kohei WAKAMIYA Last modified date:2017.05.17

Assistant Professor / Information and acoustics system
Department of Communication Design Science
Faculty of Design

Graduate School
Undergraduate School

Academic Degree
Ph.D in Engineering
Field of Specialization
Speech Science
Outline Activities
The speech conversation is one of the most fundamental communication resources between human beings. Human beings move their articulators for something speaking and can produce speech sounds with variety qualities when they speak something. I would like to investigate how human beings produce these speech sounds. For this purpose, I would like to make an artificial speech production model analogous to the human speech mechanism. Now, my study interested in the three dimensional electromagnetic articulography which is used for observation inside and outside the vocal tract for analysis of the speech production mechanism. In addition, my research is interested in the source separation for the monaural recording sound, too. On the other hand, I am in charge of a class of Acoustics Lab I and II, Electric Lab, Basic Practice of Design, Information Processing Practice V, Basical Dynamics and Practice, Information Theory and Seminar etc.
Research Interests
  • Study for observation and the analysis of the speech production mechanism
    keyword : Speech production, Three-dimensional electro-magnetic articulography, Articulator movement, and Speech synthesis
    2001.04Obseavation instruments and methods, and ayalysis for human speech production mechanizm are studied..
  • A study of the source separation for the monaural recording sound.
    keyword : monaural recording sound, source separation
  • Study for the high-density digital magnetic recording.
    keyword : HDD, PRML, Equalization, Encoding, and Head/disk interaction
    1997.04~2000.03Head/Disk Interation and signal processing for high density hard disk drive are studied..
Academic Activities
1. ``Introduction of Acoustic Design -Sound, Music and Technology,'' edited by Department of Acoustic Design, Kyushu Institute of Design, authors, Kimiko INOUE, Shinichiro IWAMIYA, Yuichi UEDA, Toshio OGATA, Akira OMOTO, Kazuhiko KAWAHARA, Tetsuji KAWABE, Toshiyuki SUZUKI, Hideyuki TAKAGI, Takashi TSUMURA, Hideo TORIHARA, Yoshitaka NAKAJIMA, Kimitoshi FUKUDOME, Kyoji FUJIWARA, Ken MATSUNAGA, Toshio MATSUMOTO, Tsuneo MIZUNO, Masato YAKO, Shigeru YOSHIKAWA and Kohei WAKAMIYA(Kyushu University Press)..
1. Hidetsugu UCHIDA, Kohei WAKAMIYA, Kaburagi Tokihiko, Improvement of measurement accuracy for the three-dimensional electromagnetic articulograph by optimizing the alignment of the transmitter coils, Acoustical Science and Technology, 37, 3, 2016.05.
2. Tokihiko KABURAGI, Kohei WAKAMIYA, Masaaki HONDA, Three-dimensional electromagnetic articulgoraphy: A measurement principle, J. Acoust. Soc. Am., 118, 1, vol. 118(1), pp.428-443, 2005.07.
3. Kohei WAKAMIYA, Takuya TSUJI and Tokihiko KABURAGI, Estimation of the vocal tract spectrum from the articulatory movement usnig phneme-dependent neural networks, Proceedings of International Conference of Spoken Language Processing 2004, TuB603-15, 2004.10.
4. Kohei WAKAMIYA, Tokihiko KABURAGI and Masaaki HONDA, An investigation of the measurement accuracy on the three-dimensional electromagnetic articulography, Proceedings of the 6th International Seminar on Speech Production, 301-307, 2003.12.
5. Tokihiko KABURAGI, Kohei WAKAMIYA and Masaaki HONDA, Three-dimensional electromagnetic articulograph based on a nonparametric representation of the magnetic field, Prec. International Conference on Spoken Language Processing, 2297-2300, 2002.09.
6. Terumitsu TANAKA, Kohei WAKAMIYA and Toshiyuki SUZUKI, Read/Write Track Fringe Effect of Thin Film and MR Head with Different Pole Shapes, IEICE Transactions on Electronics, E82-C/12, 2165-2170, 1999.12.
7. ``Error Rate Performance of Viterbi Detection with Path-feedback in Digital Magnetic Recording,'' Yoshihiro OKAMOTO, Yusuke INAI, Kohei WAKAMIYA, Hidetoshi SAITO and Hisashi OSAWA, Memoirs of the Faculty of Engineering, Ehime University.
Professional and Outreach Activities
A Japanese Scholarship Association interview committee(1999)..