Obuchi lab.


sound wave We study various aspects of audio and speech science, based on speech, audio, and music signal processing. Prof. Obuchi has strong expertise in human speech processing, but the research field of our group is expanding to other sound-related sciences. The research methodologies include not only theories and algorithms, but also applications such as performance assistance, video games, and multimedia contents. If you are interested in investigating the essence of sound, improving people's life by sound, or solving the mystery of sound by the computer, please come and see our laboratory.


Sound x Human

This is the project for seniors (graduation research), that focuses on the relationship between sounds and humans. For more information, visit the project site.



obuchi Yasunari OBUCHI (Professor)

email: mailaddress

Born in 1966. He received the B.S. degree and the M.S. degree in physics in 1988 and 1990, and the Ph.D. in information science and technology in 2006, all from the University of Tokyo. He worked at Central Research Laboratory and Advanced Research Laboratory, Hitachi, Ltd,. from 1992 to 2015. During his career in Hitachi, he was also a Visiting Scholar at Carnegie Mellon University from 2002 to 2003, a Visiting Researcher at Waseda University from 2005 to 2010, and a manager at Clarion Co, Ltd. from 2013 to 2015. From 2015, he has been working as a professor at Tokyo Unversity of Technology.

Graduate Students (MS)

  • M. Mitsuda
  • Y. Yamamoto

Class of FY2022

  • A. Suguro
  • T. Iwaki
  • S. Tomiyama
  • K. Hase
  • Y. Moto-ori




Journal papers

Peer-reviewed conference papers

Peer-reviewed domestic meetings (including those written in Japanese)

Domestic meetings (including those written in Japanese)



Prof. Obuchi's office is #512 of Kenkyuto-C (research bldg. C). You can find Kenkyuto-C in Campus Map, though it's written in Japanese. The access to the Hachioji Campus is shown here.