Anuwat Chaiwongyen received a B.S. degree in technical education (computer engineering) from the Rajamangala University of Technology Lanna, Chiang Mai, Thailand, in 2008, and an M.Eng. degree in computer engineering from Thammasat University, Thailand, in 2017. He received a Ph.D. degree from the Japan Advanced Institute of Science and Technology (JAIST), Japan, and the Sirindhorn International Institute of Technology (SIIT), Thammasat University, Thailand. From 2008 to 2020, he was a Research Assistant with the National Electronics and Computer Technology Center (NECTEC). He is currently a Lecturer with the Thammasat Business School, Thammasat University, Thailand. His research interests include speech spoofing detection, machine learning, and deep neural networks.

Khalid Zaman received his Bachelor’s degree in Telecommunications and Networks from Abasyn University, Peshawar, Pakistan, in 2016, and his Master’s degree in Computer Engineering from the Near East University, North Cyprus, Türkiye,  in 2019. He obtained his Ph.D. degree in Information Science from the Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology (JAIST), Japan, in 2025. He is currently a Postdoctoral Researcher at JAIST, where he is conducting research on acoustical feature analysis related to auditory perception and deep learning techniques for deepfake speech detection. His research interests include digital speech processing, human auditory perception, deepfake audio detection, and audio classification, with a focus on applying signal processing and deep learning methods.

Kai Li received double M.S. degrees in computer science and technology from Tianjin University (TJU), Tianjin, China, in 2019, and in information science from the Japan Advanced Institute of Science and Technology (JAIST), Nomi, Japan, in 2020. He then received his Ph.D. degree (Information Science) from JAIST in April 2024. His current research interests include modeling of speech production, deepfake audio detection, anomalous sound detection for machine condition monitoring, and speaker anonymization.

Suradej Duangpummet received a B.Eng. degree in mechatronics engineering from the Pathumwan Institute of Technology in 2002, an M.Eng. degree in mechatronics engineering from the Asian Institute of Technology, Thailand, in 2011, a first Ph.D. degree (Hons.) in information science from the Japan Advanced Institute of Science and Technology (JAIST) in 2021, under the supervision of Prof. Masashi Unoki, and a second Ph.D. degree in engineering and technology from the Sirindhorn International Institute of Technology, Thammasat University, in 2023. He has been with the National Electronics and Computer Technology Center (NECTEC) since 2002, where he is currently a Researcher. His research interests include speech and acoustic signal processing, pattern recognition, artificial intelligence, neural networks, and machine learning.

Jessada Karnjana received a B.Eng. degree in electronics engineering from the King Mongkut’s Institute of Technology Ladkrabang, Thailand, in 1999, the M.Eng. degree in microelectronics from the Asian Institute of Technology, Thailand, in 2006, a first Ph.D. degree in information science from the Japan Advanced Institute of Science and Technology, Japan, in 2016, and a second Ph.D. degree in engineering and technology from the Sirindhorn International Institute of Technology, Thammasat University, in 2017. He has been with the National Electronics and Computer Technology Center (NECTEC), Thailand, since 1999. His research interests include data analysis and machine learning, reasoning with uncertainty, signal processing, and wireless sensor networks.

WAREE KONGPRAWECHNON (Member, IEEE) received a B.Eng. degree (Hons.) in electrical engineering from Chulalongkorn University, Thailand, an M.Eng. degree in control engineering from Osaka University, Japan, in 1995, and a Ph.D. degree in engineering (mathematical engineering and information physics) from The University of Tokyo, Japan, in 1999. Since 1999, she has been a Lecturer with the School of Information, Computer, and Communication Technology, Sirindhorn International Institute of Technology, Thammasat University, Thailand, where she is currently an Associate Professor. Her research interests include theory in H∞ control, control theory, robust control, system identification, adaptive control, learning control, neural networks, and fuzzy control. Since 2019, she has been a Steering Committee Member of the Asian Control Association.

Masashi Unoki received his M.S. and Ph.D. degrees in Information Science from the Japan Advanced Institute of Science and Technology (JAIST) in 1996 and 1999. His main research interests are in auditory motivated signal processing and the modeling of auditory systems. He was a Japan Society for the Promotion of Science (JSPS) research fellow from 1998 to 2001. He was associated with the ATR Human Information Processing Laboratories as a visiting researcher from 1999–2000, and he was a visiting research associate at the Centre for the Neural Basis of Hearing (CNBH) in the Department of Physiology at the University of Cambridge from 2000 to 2001. He has been on the faculty of the School of Information Science at JAIST since 2001 and is now an associate professor. He is a member of the Research Institute of Signal Processing (RISP), the Institute of Electronics, the Information and Communication Engineers (IEICE) of Japan, and the Acoustical Society of America (ASA). He is also a member of the Acoustical Society of Japan (ASJ) and the International Speech Communication Association (ISCA). Dr. Unoki received the Sato Prize from the ASJ in 1999, 2010, and 2013 for Outstanding Paper and the Yamashita Taro “Young Researcher” Prize from the Yamashita Taro Research Foundation in 2005.