Curriculum Vitaes

Koji Sakamoto

  (阪本 浩二)

Profile Information

Affiliation
Associate professor, Faculty of Engineering Department of Mechanical Engineering for Transportation, Osaka Sangyo University
Degree
博士(情報工学)

J-GLOBAL ID
202301016023396191
researchmap Member ID
R000050009

Education

 2

Committee Memberships

 2

Papers

 17
  • 阪本 浩二
    日本感性工学会論文誌, 22(2) 121-127, Mar, 2023  Peer-reviewedLead authorCorresponding author
  • SAKAMOTO Koji
    Transactions of Japan Society of Kansei Engineering, 21(4) 431-437, Dec, 2022  Peer-reviewedLead authorCorresponding author
    This paper proposes a binaural model for estimating the sound image width of the audio-listening environment in a car cabin. Based on a binaural model for the sound image azimuth estimation proposed in a previous study, a new feature was extracted and expanded into a model capable of estimating the sound image width. To improve the estimation accuracy of this model, the width of the sound image azimuth estimation distribution was extracted from the attack region of the gammachirp auditory filter bank outputs, and a multiple nonlinear regression model that uses the feature and sound image azimuth estimate value was constructed and examined. As the results indicate, the proposed method achieves a significantly higher accuracy.
  • Koji Sakamoto
    ICIC Express Letters, Part B: Applications, An International Journal of Research and Surveys, 13(4) 379-387, Apr, 2022  Peer-reviewedLead authorCorresponding author
  • SAKAMOTO Koji
    Transactions of Japan Society of Kansei Engineering, 20(3) 285-289, Aug, 2021  Peer-reviewedLead authorCorresponding author
    An azimuth estimation binaural model of sound image for an audio listening environment in a car cabin is proposed. To improve the estimation accuracy of this model, a gammachirp auditory filterbank was used to extract the physical characteristics related to the in-cabin audio listening environment sound image azimuth. The effectiveness of the proposed method was confirmed by its higher level of correlation between the experimental and estimated values as compared to the frequency domain binaural model.
  • Koji Sakamoto, Shunsuke Ishimitsu, Keitaro Sugawara, Toshikazu Yoshimi, Katsuhiro Sasaki
    ICIC Express Letters, Part B: Applications, An International Journal of Research and Surveys, 2(3) 597-602, Jun, 2011  Peer-reviewedLead author

Misc.

 6

Presentations

 37

Teaching Experience

 6

Professional Memberships

 5