Hybrid active noise barrier with sound masking

Xun Wang, Yosuke Koba, Satoshi Ishikawa, Shinya Kijimoto

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

In this paper, a hybrid active noise barrier (ANB) with sound masking capability is considered. To protect the speech privacy, several sound masking techniques have been developed. However, these sound masking techniques based on the superposition of the masker and original sound will lead to increase in the loudness of the sound after masking. Against this problem, this paper proposes a soundproof system which combines an ANB with a sound masking system. The ANB applies a new type of hybrid active noise control (ANC) system, which can reduce the noise diffraction and the noise propagated to the ear positions of the people behind the ANB simultaneously, to attenuate the conversation sound. Consequently, the required volume of the masker sound will decrease because of the smaller loudness of the original conversation sound in the control area. The sound masking system applies a method which can generate masker based on the frequency properties of the original sound. Several simulations are carried out to investigate the sound attenuation and sound masking performance of this system, and the results show that comparing with the traditional sound masking system, the proposed system needs smaller masker sound to achieve the sound masking effect.

本文言語英語
ホスト出版物のタイトルINTERNOISE 2014 - 43rd International Congress on Noise Control Engineering
ホスト出版物のサブタイトルImproving the World Through Noise Control
編集者John Davy, Marion Burgess, Charles Don, Liz Dowsett, Terry McMinn, Norm Broner
出版社Australian Acoustical Society
ISBN(電子版)9780909882037
出版ステータス出版済み - 1 1 2014
イベント43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014 - Melbourne, オーストラリア
継続期間: 11 16 201411 19 2014

出版物シリーズ

名前INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control

その他

その他43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014
Countryオーストラリア
CityMelbourne
Period11/16/1411/19/14

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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