Multivariable modeling of head-related transfer function and control systems design for three-dimensional sound system

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06150
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Control engineering/System engineering
• Research Institution: Keio University
• Principal Investigator: Adachi Shuichi 慶應義塾大学, 理工学部(矢上), 教授 (40222624)
• Co-Investigator(Kenkyū-buntansha): 井上 正樹 慶應義塾大学, 理工学部(矢上), 助教 (80725680)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 制御理論 / システム同定 / 音響工学

Outline of Final Research Achievements

This study addresses transaural sound reproduction over loudspeakers, which is a virtual realization of a three-dimensional audio. In order to construct the three-dimensional audio, it is necessary to estimate head-related transfer functions (HRTFs) of the listener. First, an estimation method of HRTFs using multivariable system identification theory is proposed, and its effectiveness is examined using experimental data. Second, using the estimated HRTFs, a construction method of the transaural system for the three-dimensional audio is studied. In particular, a design method of a stable feedforward controller based on model matching is proposed. Finally, the effectiveness of the proposed method is examined through numerical simulations.

Free Research Field

工学