Acoustic Hologram with Flexible Parametric Loudspeaker

2017 Fiscal Year Final Research Report

• Project/Area Number: 26280065
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Perceptual information processing
• Research Institution: Ritsumeikan University
• Principal Investigator: Nishiura Takanobu 立命館大学, 情報理工学部, 教授 (70343275)
• Co-Investigator(Kenkyū-buntansha): 善本 哲夫 立命館大学, 経営学部, 教授 (40396825) ; 中山 雅人 立命館大学, 立命館グローバル・イノベーション研究機構, 准教授 (90511056)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: パラメトリックスピーカ / 音像ホログラム / オーディオスポット / フレキシブルパラメトリックスピーカ / 社会実装実験

Outline of Final Research Achievements

A 3D acoustic hologram was constructed with a parametric loudspeaker that focuses an emitted sound wave to construct a sound image in a targeted area. The flexible parametric loudspeaker was first developed by enabling the surface of the loudspeaker to be freely transformed. The 3D acoustic hologram was then realized by separating the carrier and sideband waves of a sound wave with multiple flexible parametric loudspeakers. The application of the hologram was also investigated through social implementation experiments, and we researched the integrated development of a hologram that could construct a sound image in a targeted area.

Free Research Field

音響情報処理