| Presentation | 2015-06-18 Tetrahedral microphone system for a virtual cardioid microphone Kaoru Ashihara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Since every waveform can be subdivided into one or more sinusoids, spatial audio information at a given observation point can be approximated by giving the amplitude, phase and wave normal direction of each sine wave. The wave normal direction of each sine wave can be obtained by using a 4-channel tetrahedral microphone system. By using the obtained spatial audio information, sound from particular direction can be enhanced or suppressed programmatically. By converting 3-D vectors to 8-bit digits, spatial audio information can be transmitted at a low bit rate. It allows the user to pick up or reject sound from any requested direction during the reproduction. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Virtual cardioid microphone / Directionality / Wave normal / Spatial sound / Miniature head simulator |
| Paper # | PRMU2015-37,SP2015-6,WIT2015-6 |
| Date of Issue | 2015-06-11 (PRMU, SP, WIT) |
| Conference Information | |
| Committee | WIT / SP / ASJ-H / PRMU |
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| Conference Date | 2015/6/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kiyohiko Nunokawa(Tokyo International Univ.) / Kazunori Mano(Shibaura Inst. of Tech.) / Masato Akagi(北陸先端大) / Eisaku Maeda(NTT) |
| Vice Chair | Chikamune Wada(Kyushu Inst. of Tech.) / Norihide Kitaoka(Tokushima Univ.) / Shigeto Furukawa(NTT) / Shuji Senda(NEC) / Seiichi Uchida(Kyushu Univ.) |
| Secretary | Chikamune Wada(Nagoya Inst. of Tech.) / Norihide Kitaoka(AIST) / Shigeto Furukawa(Tsukuba Univ. of Tech.) / Shuji Senda(Tokyo City Univ.) / Seiichi Uchida(Kobe Univ.) |
| Assistant | Tomohiro Amemiya(NTT) / Takeaki Shionome(Tsukuba Univ. of Tech.) / Manabi Miyagi(Tsukuba Univ. of Tech.) / Takashi Nose(Tohoku Univ.) / Taichi Asami(NTT) / / Kazuaki Kondo(Kyoto Univ.) / Akisato Kimura(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Well-being Information Technology / Technical Committee on Speech / * / Technical Committee on Pattern Recognition and Media Understanding |
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| Language | ENG-JTITLE |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Tetrahedral microphone system for a virtual cardioid microphone |
| Sub Title (in English) | |
| Keyword(1) | Virtual cardioid microphone |
| Keyword(2) | Directionality |
| Keyword(3) | Wave normal |
| Keyword(4) | Spatial sound |
| Keyword(5) | Miniature head simulator |
| 1st Author's Name | Kaoru Ashihara |
| 1st Author's Affiliation | National Institute of Advanced Industrial Science and Technology(AIST) |
| Date | 2015-06-18 |
| Paper # | PRMU2015-37,SP2015-6,WIT2015-6 |
| Volume (vol) | vol.115 |
| Number (no) | PRMU-98,SP-99,WIT-100 |
| Page | pp.pp.31-36(PRMU), pp.31-36(SP), pp.31-36(WIT), |
| #Pages | 6 |
| Date of Issue | 2015-06-11 (PRMU, SP, WIT) |