Silent Spot Generation Technique Under Loud Noise Environments

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K00256
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Perceptual information processing
• Research Institution: Kansai University
• Principal Investigator: Kajikawa Yoshinobu 関西大学, システム理工学部, 教授 (30268312)
• Research Collaborator: SHI Chuang 電子科技大学, 准教授
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: アクティブノイズコントロール / サイレントスポット生成システム / 騒音制御 / バーチャルセンシング / パラメトリックスピーカ / 快適な音環境

Outline of Final Research Achievements

The main purpose of this project is to develop a silent spot generation system, which realizes comfortable sound environment for users who stay under terrible loud acoustic noise environment like inside factory. To do this, the silent spot generation system creates comfortable sound environment for users who can acoustically take a rest. In order to realize this system, we have developed silent spot generation systems using parametric array loudspeakers, which have super directivity feature and deliver sound to a limited area, and using virtual sensing technique, which allows error microphones to locate at an appropriate position where does not avoid user's convenience for their works and activities. The effectiveness of the developed systems has been demonstrated through some simulation and experimental results.

Free Research Field

音響信号処理