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Sound Field Reproduction System Tracking Environmental Variations With Deconvolution
Title: | Sound Field Reproduction System Tracking Environmental Variations With Deconvolution |
Authors: | Nobe, Yuji Browse this author | Kajikawa, Yoshinobu Browse this author |
Issue Date: | 4-Oct-2009 |
Publisher: | Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference, International Organizing Committee |
Journal Title: | Proceedings : APSIPA ASC 2009 : Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference |
Start Page: | 226 |
End Page: | 229 |
Abstract: | In this paper, we propose a novel sound field reproduction system using the deconvolution. In the conventional sound reproduction systems, the preprocessing filters are generally determined and fixed based on transfer functions from loudspeakers to control points in advance. However, movements of control points result in severe localization errors. Therefore, we have already proposed a sound field reproduction system using the simultaneous perturbation (SP) method which updates the filter coefficients only using error signal. However the SP method suffers from the disadvantage of slow convergence. Hence, we newly propose a sound field reproduction system using Deconvolution Algorithm (DA) which has the advantage of the fast convergence. The DA updates the filter coefficients using the signals which input to the loudspeakers and the observing microphones. Simulation results demonstrate that the proposed method can track the movements of control points and has reasonable convergence speed. |
Description: | APSIPA ASC 2009: Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference. 4-7 October 2009. Sapporo, Japan. Poster session: Audio and Electroacoustics (5 October 2009). |
Conference Name: | APSIPA ASC 2009: Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference | 2009年アジア太平洋信号情報処理連合学会アニュアルサミット・国際会議 |
Conference Place: | Sapporo |
Type: | proceedings |
URI: | http://hdl.handle.net/2115/39678 |
Appears in Collections: | 北海道大学サステナビリティ・ウィーク2009 (Sustainability Weeks 2009) > 2009年アジア太平洋信号情報処理連合学会アニュアルサミット・国際会議 (2009 APSIPA Annual Summit and Conference)
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