| Presentation | 2007-06-22 A Study on Sound Field Reproduction System Using Simultaneous Perturbation Method Kazuya TSUKAMOTO, Yoshinobu KAJIKAWA, Yasuo NOMURA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a novel sound field reproduction system using the simultaneous perturbation (SP) method and its faster convergence techniques. In the sound field reproduction system which reproduces any desired signal at listener's ear, 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. We therefore propose a sound field reproduction system using the SP method which updates the filter coefficients only using error signal. The SP method suffers from the disadvantage of the slow convergence, although this method can track the movements of any control point. Hence, we also propose two methods improving the convergence speed. One is a delay control method which compensates a delay due to the back-and-forth movements of control point. The other is a compensation method which improves the localization error due to the head rotation. Simulation results demonstrate that the proposed methods can track the movements of control points and have reasonable convergence speed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sound field reproduction / simultaneous perturbation method / delay control / head-related transfer function |
| Paper # | CAS2007-31,VLD2007-47,SIP2007-61 |
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| Conference Information | |
| Committee | SIP |
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| Conference Date | 2007/6/15(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Signal Processing (SIP) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Sound Field Reproduction System Using Simultaneous Perturbation Method |
| Sub Title (in English) | |
| Keyword(1) | sound field reproduction |
| Keyword(2) | simultaneous perturbation method |
| Keyword(3) | delay control |
| Keyword(4) | head-related transfer function |
| 1st Author's Name | Kazuya TSUKAMOTO |
| 1st Author's Affiliation | Faculty of Science and Engineering, Kansai University() |
| 2nd Author's Name | Yoshinobu KAJIKAWA |
| 2nd Author's Affiliation | Faculty of Science and Engineering, Kansai University |
| 3rd Author's Name | Yasuo NOMURA |
| 3rd Author's Affiliation | Faculty of Science and Engineering, Kansai University |
| Date | 2007-06-22 |
| Paper # | CAS2007-31,VLD2007-47,SIP2007-61 |
| Volume (vol) | vol.107 |
| Number (no) | 105 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |