| Presentation | 2021-11-15 [Poster Presentation] Implementation and evaluation of spatial-derivative-sampling microphone array Kazuya Inoue, Yuya Houda, Atsushi Nakayama, Suehiro Shimauchi, Shigeaki Aoki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have been studying spatial derivative sampling, which is a fusion of the spatial sampling theorem and the Taylor expansion. By observing not only the sound pressure but also its derivatives up to the Rth order at each observation point, the information of the sound field between the elements can be reproduced, even when the effective element spacing of the microphone array is extended to R + 1 times wider than that of the conventional microphone array. However, to obtain the observed value of the derivative, it is practically necessary to use the difference information between closely arranged microphones. Therefore, it is important to confirm the accuracy of the difference approximation in the actual environment. In this technical report, we show some evaluation results of the interpolation performance of sound field when R = 1, by using a prototype of sub-array units consisting of the closely arranged microphones |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spatial sampling theorem / Taylor expansion / Spatial derivative sampling / microphone array |
| Paper # | EA2021-31,EMM2021-58 |
| Date of Issue | 2021-11-08 (EA, EMM) |
| Conference Information | |
| Committee | EMM / EA / ASJ-H |
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| Conference Date | 2021/11/15(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Beginners Session] Engineering/Electro Acoustics, Content Processing, Digital Watermarking, Psychological and Physiological Acoustics, and Related Topics |
| Chair | Ryoichi Nishimura(NICT) / Yoshinobu Kajikawa(Kansai Univ.) / 加藤 宏明(NICT) |
| Vice Chair | Masaaki Fujiyoshi(Tokyo Metropolitan Univ.) / Masatsugu Ichino(Univ. of Electro-Comm.) / Kenichi Furuya(Oita Univ.) / Shoichi Koyama(Univ. of Tokyo) / 坂本 修一(東北大) |
| Secretary | Masaaki Fujiyoshi(Utsunomiya Univ.) / Masatsugu Ichino(NICT) / Kenichi Furuya(NTT) / Shoichi Koyama(RitsumeikanUniv.) / 坂本 修一(東大) |
| Assistant | Shoko Imaizumi(Chiba Univ.) / Youichi Takashima(Kaishi Professional Univ.) / Yukou Wakabayashi(Tokyo Metropolitan Univ.) / Tatsuya Komatsu(LINE) |
| Paper Information | |
| Registration To | Technical Committee on Enriched MultiMedia / Technical Committee on Engineering Acoustics / Auditory Research Meeting |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Implementation and evaluation of spatial-derivative-sampling microphone array |
| Sub Title (in English) | |
| Keyword(1) | Spatial sampling theorem |
| Keyword(2) | Taylor expansion |
| Keyword(3) | Spatial derivative sampling |
| Keyword(4) | microphone array |
| 1st Author's Name | Kazuya Inoue |
| 1st Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| 2nd Author's Name | Yuya Houda |
| 2nd Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| 3rd Author's Name | Atsushi Nakayama |
| 3rd Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| 4th Author's Name | Suehiro Shimauchi |
| 4th Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| 5th Author's Name | Shigeaki Aoki |
| 5th Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| Date | 2021-11-15 |
| Paper # | EA2021-31,EMM2021-58 |
| Volume (vol) | vol.121 |
| Number (no) | EA-246,EMM-247 |
| Page | pp.pp.25-30(EA), pp.25-30(EMM), |
| #Pages | 6 |
| Date of Issue | 2021-11-08 (EA, EMM) |