Design of inverse filters for multi-channel directivity reproduction of a sound source -Application to telecommunication system using sound casks

Yusuke Ikeda, Yuki Karatsu, Shunya Kouno, Yuko Watanabe, Shiro Ise

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

We developed a 96-ch immersive sound reproduction system based on the boundary surface control and are working on implementing it into an acoustical-space-sharing telecommunication system. In this paper, we propose a sound directivity reproduction method for a telecommunication system based on the boundary surface control. We estimate the radiation from a sound source by solving an inverse problem between the microphone array and the secondary sources. Then, the estimated radiation is reproduced by the secondary sources at the location of a virtual speaker or musical player in the shared acoustical space. Because the sound field of the virtual listener's position can be reproduced on the basis of boundary surface control, a distant listener can listen the speaker's sound involving changes which occurs as the result of the speaker's body movements as if they were in the same room or hall. We verify the effectiveness of this method by evaluating the directivity of the secondary sound sources in a free-field simulation and an experiment in an anechoic chamber.

本文言語English
ホスト出版物のタイトルProceedings of Forum Acusticum
出版社European Acoustics Association, EAA
2014-January
ISBN(印刷版)9788361402282
出版ステータスPublished - 2014
外部発表はい
イベント7th Forum Acusticum, FA 2014 - Krakow, Poland
継続期間: 2014 9 72014 9 12

Other

Other7th Forum Acusticum, FA 2014
国/地域Poland
CityKrakow
Period14/9/714/9/12

ASJC Scopus subject areas

  • 音響学および超音波学

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