A discretization of the wave field synthesis method for auralization of natural sounds

César D. Salvador

研究成果: Conference contribution

抄録

A complete description of the implementation of an immersive soundscape is proposed in this document. It begins with the time-discretization of the continuous wave field synthesis method for arbitrary contours, with special attention to the prefilter stage that involves a fractional order system. On this stage, the Al-alaoui discretization, the Grünwald-Letnikov approach for fractional expansion, and the Shank least squares approximation method to compute the zero-pole filter that generates the fractional system are described. The document goes on to explain the rendering of background and foreground sounds, using respectively plane and spherical wave models. The simulations of sound pressure fields inside the listening area also shown. Finally, simulations of a real case report a discretization percentage error around 1%, using 24 loudspeakers and a 5th order IIR pre-filter per channel.

本文言語English
ホスト出版物のタイトルIMCIC 2010 - International Multi-Conference on Complexity, Informatics and Cybernetics, Proceedings
編集者Jorge Baralt, Michael J. Savoie, Hsing-Wei Chu, C. Dale Zinn, Nagib C. Callaos
出版社International Institute of Informatics and Systemics, IIIS
ページ47-52
ページ数6
ISBN(電子版)9781934272916
出版ステータスPublished - 2010
外部発表はい
イベントInternational Multi-Conference on Complexity, Informatics and Cybernetics, IMCIC 2010 - Orlando, United States
継続期間: 2010 4 62010 4 9

出版物シリーズ

名前IMCIC 2010 - International Multi-Conference on Complexity, Informatics and Cybernetics, Proceedings
1

Other

OtherInternational Multi-Conference on Complexity, Informatics and Cybernetics, IMCIC 2010
国/地域United States
CityOrlando
Period10/4/610/4/9

ASJC Scopus subject areas

  • 情報システム
  • コンピュータ ネットワークおよび通信
  • 人工知能

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