| Presentation | 2009-05-28 A Study on Transoral System Using Deconvolution Yuji NOBE, Yoshinobu KAJIKAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a novel sound field reproduction system using 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. As a result, the reproduced sound is degraded due to movements of control points. 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. Although the problem is solved by using the simultaneous perturbation method, this system 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 input to the loudspeakers and from the observing microphones. Simulation results demonstrate that the proposed method can track the movements of control points and has reasonable convergence speed and Reproduction Accuracy. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sound reproduction / deconvolution / perturbation method / preprocessing filter |
| Paper # | EA2009-5,SIP2009-5,SP2009-10 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2009/5/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Speech (SP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Transoral System Using Deconvolution |
| Sub Title (in English) | |
| Keyword(1) | sound reproduction |
| Keyword(2) | deconvolution |
| Keyword(3) | perturbation method |
| Keyword(4) | preprocessing filter |
| 1st Author's Name | Yuji NOBE |
| 1st Author's Affiliation | Faculty of Engineering Science, Kansai University() |
| 2nd Author's Name | Yoshinobu KAJIKAWA |
| 2nd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| Date | 2009-05-28 |
| Paper # | EA2009-5,SIP2009-5,SP2009-10 |
| Volume (vol) | vol.109 |
| Number (no) | 57 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |