A study of recording and reproducing system for selective listening audio

2014 Fiscal Year Final Research Report

• Project/Area Number: 24500203
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Perception information processing/Intelligent robotics
• Research Institution: Mie University
• Principal Investigator: NISHINO Takanori 三重大学, 工学(系)研究科(研究院), 准教授 (40329769)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 立体音響 / マイクロホンアレイ / 数値解析 / 超指向性スピーカ / 振動式スピーカ

Outline of Final Research Achievements

Methods of recording and reproducing sound field were investigated for the novel spatial audio system called as the selective listening audio. A spherical microphone baffle with hollows was proposed and evaluated by the numerical analysis and the actual measurement. The results show that the acoustic transfer function between the proposed device and a sound source is changed in a direction of sound source, and the device can be applied to an emphasis of a sound source and the binaural recording. The method of sound reproduction with the parametric speaker and the vibration speaker were also investigated.

Free Research Field

音響工学