Shoichi Koyama, Ph.D.
Associate Professor
Digital Content and Media Sciences Research Division ,
National Institute of Informatics /
Graduate Institute for Advanced Studies , SOKENDAI
2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, Japan
koyama.shoichiieee.org
Shoichi Koyama received his B.E., M.S, and Ph.D. degrees from the University of Tokyo, Tokyo, Japan, in 2007, 2009, and 2014, respectively. He is currently an Associate Professor at the National Institute of Informatics (NII), Tokyo, Japan. Prior to joining NII, he was a Researcher at Nippon Telegraph and Telephone Corporation (2009-2014), and Research Associate (2014-2018) and Lecturer (2018-2023) at the University of Tokyo, Tokyo, Japan. He was also a Visiting Researcher at Paris Diderot University (Paris 7), Institut Langevin, Paris, France (2016-2018), and a Visiting Associate Professor at Research Institute of Electrical Communication, Tohoku University, Miyagi, Japan (2020-2023). His research interests include audio signal processing/machine learning, acoustic inverse problems, and spatial audio. (Full CV: )
Research topics
Acoustic signal processing, machine learning for audio, microphone and loudspeaker array processing, spatial audio (See more details: )
Professional experience
| 2023.04 – | Associate Professor at National Institute of Informatics (NII) / Graduate University for Advanced Studies (SOKENDAI) |
| 2020.04 – 2023.03 | Visiting Associate Professor at Research Institute of Electrical Communication (RIEC), Tohoku University |
| 2018.04 – 2023.03 | Lecturer at Graduate School of Information Science and Technology, the University of Tokyo |
| 2016.04 – 2018.03 | Visiting researcher at Université Paris Diderot (Paris 7) / Institut Langevin (JSPS Overseas Research Fellow) |
| 2014.04 – 2018.03 | Research Associate at Graduate School of Information Science and Technology, the University of Tokyo |
| 2009.04 – 2014.03 | Nippon Telegraph and Telephon Corp., NTT Media Intelligence Laboratories, Researcher |
Senior Member of IEEE, Member of Acoustical Society of America (ASA), Audio Engineering Society (AES), IEICE, Acoustical Society of Japan (ASJ)
Education
| 2014.01 | Ph.D. (Information Science and Technology) from the University of Tokyo |
| 2009.03 | Graduated from Department of Information Physics and Computing, Graduate School of Information Science and Technology, the University of Tokyo |
| 2007.03 | Graduated from Department of Mathematical Engineering and Information Physics, Faculty of Engineering, the University of Tokyo |
Selected professional services
| 2026.09 | Plenary Lectures Chair, International Workshop on Acoustic Signal Enhancement (IWAENC) 2026 |
| 2025.10 | Diversity and Inclusion Chairs, IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) 2025 |
| 2025.07 – | Associate Editor, IEEE Signal Processing Letters |
| 2025.07 – | Editorial Committee Member, Journal of Acoustical Society of Japan |
| 2024.01 – | Associate Editor, IEEE Open Journal of Signal Processing |
| 2024.01 – | Member, IEEE SPS Audio and Acoustic Signal Processing (AASP) Technical Committee |
| 2023.06 – 2025.05 | Editor in Field C, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences |
| 2021.12 | Publication Co-Chair,13th Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2021) |
| 2018.09 | Finance Chair, International Workshop on Acoustic Signal Enhancement (IWAENC) 2018 |
Reviewer for IEEE/ACM Transactions on Audio, Speech, and Language Processing, IEEE Transactions on Signal Processing, IEEE Signal Processing Letters, Journal of the Acousitcal Society of America, IEEE ICASSP, IEEE WASPAA, etc.
Selected awards
- The Service Award for Editorial Activities, IEICE ESS, 2025.
- The Research Award, Funai Foundation for Information Technology, 2018.
- The Telecom System Technology Award, the Telecommunication Advancement Foundation, 2015.
- The Itakura Prize Innovative Young Researcher Award, ASJ, 2015.
- The Awaya Prize Young Researcher Award, ASJ, 2011.
- The Best Young Researcher Paper Award, IEEJ Sensors and Micromachines Society, 2010.
Selected research grants
Principal Investigator
- AY2022-2028 JST FOREST “Spatial Control of Sound and Its Applications”
- AY2022-2025 JSPS KAKENHI, Grant-in-Aid for Scientific Research (B)
“Data-driven sound field measurement for high-resolution spatial audio analysis and its applications” - AY2018-2020 The University of Tokyo Excellent Young Researcher (AY2018)
- AY2018-2021 JST PRESTO (Humans and Interactions)
“Spatial Sound Field Recording and Reproduction With Distributed Arrays” - AY2016-2017 JSPS Overseas Research Fellowships
- AYA2015-2018 JSPA KAKENHI, Grant-in-Aid for Young Scientists (A)
“A study on super-resolution sound field recording and reproduction for high-fidelity audio systems”
Co-Investigator
- AY2019-2022 JSPS KAKENHI, Grant-in-Aid for Scientific Research (A) (PI: Hiroshi Saruwatari)
“Acoustic Augmented Reality and Auditory Communication Ability Expansion Based on Small-Data Machine Learning Theory” - AY2016-2019 JSPS KAKENHI, Grant-in-Aid for Scientific Research (A) (PI: Nobutaka Ono)
“Deepening of Array Signal Processing Theory Expanded to Asynchronous Distributed Channels and Real-World Applications”