| Presentation | 2002/1/18 Iterative Inverse Filter Relaxation Algorithm for Adaptation to Acoustic Fluctuation in Sound Reproduction System Yu NAGATA, Yosuke TATEKURA, Hiroshi SARUWATARI, Kiyohiro SHIKANO, |
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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 an adaptive relaxation algorithm for inverse filter design of the multichannel sound reproduction system. In the conventional multichannel sound reproduction system, a design method of inverse filter using Moore-Penrose generalized inverse matrix has been proposed. However, the inverse filter of the conventional method often amplifies background noise and line noise when the room transfer function changes. In order to resolve the problem, the adaptive relaxation algorithm based on Truncated Singular Value Decomposition (TSVD) method is introduced, in which the only one microphone to observe the noise condition is placed apart from listener's ears. The experimental result of the computer simulation reveals that the proposal method can prevent the noise amplifications. Also, the subjective evaluation in the real acoustic environment indicates the trade-off relation between the sound quality and the localization. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Sound reproduction / Iterative algorithm / Inverse filter desigrn / Adaptation / Relaxation of inverse filter |
| Paper # | 2001-US-103,2001-EA-117 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2002/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Iterative Inverse Filter Relaxation Algorithm for Adaptation to Acoustic Fluctuation in Sound Reproduction System |
| Sub Title (in English) | |
| Keyword(1) | Sound reproduction |
| Keyword(2) | Iterative algorithm |
| Keyword(3) | Inverse filter desigrn |
| Keyword(4) | Adaptation |
| Keyword(5) | Relaxation of inverse filter |
| 1st Author's Name | Yu NAGATA |
| 1st Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology() |
| 2nd Author's Name | Yosuke TATEKURA |
| 2nd Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology |
| 3rd Author's Name | Hiroshi SARUWATARI |
| 3rd Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology |
| 4th Author's Name | Kiyohiro SHIKANO |
| 4th Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology |
| Date | 2002/1/18 |
| Paper # | 2001-US-103,2001-EA-117 |
| Volume (vol) | vol.101 |
| Number (no) | 598 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |