Researcher Database

（Last updated : 2026-04-10 23:08:47）　

NAKAYAMA MASATO

Department / Course College of Arts and Design Department of Arts and Design

Title / Position Professor

Academic background
1.	2010/12 Degree Acquisition	│ Ritsumeikan University Doctor of Philosophy in Engineering
2.	2007/10～2008/03	│ Ritsumeikan University
3.	2004/04～2007/09	Doctoral Program (2nd Semester) │ Division of Science and Engineering │ Graduate School of Science and Engineering │ Ritsumeikan University │ Accomplished credits for doctoral program
4.	2003/04～2004/03	Doctoral Program (2nd Semester) │ Division of Systems Engineering │ Graduate School of Systems Engineering │ Wakayama University │ Unfinished
5.	2001/04～2003/03	Doctoral Program (1st Semester) │ Division of Systems Engineering │ Graduate School of Systems Engineering │ Wakayama University │ Completed
Display All（6）

Business career
1.	2025/04/01 ～ 2026/03/31	Professor │ │
2.	2023/09/01 ～ 2025/03/31	Vice President │ │
3.	2022/04/01 ～ 2025/03/31	Professor │ │
4.	2018/04/01 ～ 2022/03/31	Associate Professor │ │
5.	2017/10/01 ～ 2018/03/31	Associate Professor │ │
Display All（13）

Committee and society
1.	2025/01 ～	IEEE SPS Kansai chapter Treasurer
2.	2014/05 ～ 2020/04	Technical Committee of Engineering acoustics, IEICE Member
3.	2014/05 ～ 2020/04	Technical Committee of Electroacoustics, ASJ Member
4.	2014/04 ～ 2015/03	ASJ Kansai Chapter Young Researcher Exchange Conference Committee Vice‐chairman
5.	2013/04 ～ 2015/03	ASJ Kansai Chapter Treasurer
Display All（8）

Research activities
1.	2002/04 ～	The Acoustical Society of Japan (ASJ)
2.	2006/04 ～	The Institute of Electronics, Information and Communication Engineers (IEICE)
3.	2017/04 ～	THE VIRTUAL REALITY SOCIETY OF JAPAN
4.	2013/04 ～ 2026/03	The Institute of Electrical Engineers of Japan

Subject of research
1.	Psychological and physiological acoustics
2.	Sound acquisition and acoustic sensor
3.	Three-dimensional sound field reproduction

Research summary
Analysis, recognition, reproduction and synthesis of sound environment based on acoustic signal processing I am engaged in the research on analysis, recognition, reproduction and synthesis of sound environment as media and focusing on the acoustic information processing and digital signal processing. Especially, I am advancing the research so that I can contribute to the wealthy social infrastructure by achieving practical use of acoustic technologies such as “3D Stereoscopic Acoustic Reproduction”, “Audio Spot”, “Noise Suppression/Comfortable Sound”, “Intelligent Acoustic Sensor”, “Sound Field Simulator” and “Digital Archive of multiple sound source space”.

Present specialized field
Perceptual information processing, Intelligent robotics (Keyword：Engineering acoustics, Array signal processing, Speech information processing, Measurement engineering, Sound interface)

Papers
1.	2026/01/23	Acoustic Metadata Design on Object-Based Audio Using Estimated 3D-Position from Visual Image Toward Depth-Directional Sound Image Localization │ Acoustics │ 8 (1),pp.3-3
2.	2025/11/14	High-frequency Components Reconstruction with Denoising for Separated Speech Captured by Optical Laser Microphone │ 2025 International Workshop on Smart Info-Media Systems in Asia │ ,pp.125-130
3.	2025/11/13	Speech Enhancement Based on Degraded Speech Generation Using Dual Style Encoders for Optical Laser Microphone │ 2025 International Workshop on Smart Info-Media Systems in Asia │ ,pp.56-59
4.	2025/10/31	Head Orientation Estimation Based on Multiple Frequency Bands Using Sparsely Aligned Microphones │ Journal of Experimental and Theoretical Analyses │ 3 (4),pp.34-34
5.	2025/10/22	Design of Speech Leakage-Suppressed Audio-Spot Based on Auditory Masking Area Control with Active Masker Cancellation Using Parametric Array Loudspeakers │ APSIPA ASC 2025: 2025 Asia Pacific Signal and Information Processing Association Annual Summit and Conference │ ,pp.334-339
Display All（274）

Winning science prize
1.	2026/03	Research Institute of Signal Processing Japan RISP Best Paper Award (2026) (Sound-Field Reproduction Based on Virtual Early Reflections Using Parametric and Electrodynamic Loudspeakers)

Grants-in-Aid for Scientific Research -KAKENHI-
1.	2023/04/01 ～ 2027/03/31	Desing and systematization of next-generation pin-spot audio system infrastructure │ Grant-in-Aid for Scientific Research(B)
2.	2021/04/01 ～ 2025/03/31	Fundamental Development of Acoustic Telexistence Technology Using Acoustic Image Holography │ Grant-in-Aid for Scientific Research(B)
3.	2019/04/01 ～ 2023/03/31	Audio-spot design on soundscape │ Grant-in-Aid for Scientific Research(B)
4.	2018/06/29 ～ 2020/03/31	Soundscape aestheticization with noise chordization │ Challenging Research(Exploratory)
5.	2018/04/01 ～ 2021/03/31	Development of acoustic pin-spot system based on acoustic distance measurement using parametric loudspeaker │ Grant-in-Aid for Scientific Research(C)
Display All（8）

External Researcher ID
ORCID ID
0009-0004-6758-1986