Active Noise Control with a Moving Evaluation Point

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概要

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• Active noise control (ANC) in 3-dimensional sound field, e.g. an office room, is investigated in this paper. Since the size of the controlled area normally depends on the wave length of the target noise, it is difficult to control in the whole room using ANC technique. Instead, around-head-control is investigated in this paper. To realize the around-head-control, an evaluation point is required to correspond with the head movement while controlling. However, the evaluation point movement while controlling has not been considered in a conventional ANC. Against this problem, a new algorithm is proposed in this paper. The algorithm updates filters by using Time-Delay filter and Distance-Attenuation coefficient. Time-Delay filter and Distance-Attenuation coefficient are calculated from the position of the evaluation point. The computer simulations are carried out, and the validity of the new algorithm is shown.

• 一般社団法人 日本機械学会の論文

著者

• Kijimoto Shinya

  Kyushu University

• Matsuda Koichi

  Kyushu University

• IKEDA Ikuma

  Kyushu University

• KOBA Yosuke

  Kyushu University

関連論文

• Equivalent sensing position of a microphone probe
• Active Noise Control Assuming Quiet Zone Movement
• Active Noise Control with a Moving Evaluation Point

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