Dr. Kazuhiko Kawahara is an Associate Professor at the Department of Acoustic Design, School of Design, Kyushu University. He received a master's degree from Kyushu Institute of Design in 1989 and his Ph.D. degree from Kyushu University in 2017.
Kazuhiko worked for the TOA corporation as a Digital Signal Processing Engineer from 1989 to 1991.  He was a member of the cutting-edged developing team of a Digital Mixing System for live performance. It was the era that real-time digital signal processing systems were thought unreliable. However, he had implemented the system and made it reliable.
In 1991 he returned to Kyushu Institute of Design as a research assistant. He belongs to Kyushu University after 2003 because of universities reformation in Japan.
His field of research is electro-acoustics and audio signal processing. He has also done work in Loudspeaker evaluation, application technology, and remote presence for remote live viewing. His recent focus involves the pedagogy of Technical Listening Training (TLT). He has attended many AES conventions and conferences with his students for signal processing, audio networking, audio mixing evaluations, and loudspeaker-related research presentations. He also joined ear-training workshops as a panel for his ear training (TLT).
He has been an active member of the AES for many years. And He now serves as a vice-chairman of the Education committee of AES and an Education committee member of the AES Japan section.