| Presentation | 2016-11-18 Theoretical analysis of vibration transmission characteristics of audio base having rotating exponential horn and experimental result Masahide Kita, Kiminobu Nishimura, Kenji Manpuku, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Many kinds of audio-bases are used to better the sound quality of stereophonic equipments, but their effects seem not always better in improvement of sound quality. But, the mechanism of audio-base to a loaded equipment have not yet clarified, In previous study, we had clarified that an audio-base is effective to reduce inevitable vibration and electrical noise on stereophonic equipment and to improve the sound quality and summing localization under standard stereophonic representation. In this study, to clarify the effect of audio-base shaped in rotating exponential horn for loaded equipment, first we analyze its vibration transmission characteristic based on the wave equation. Then, we derived the input impedance of horn at “throat” or “mouth” to evaluate the difference in direction of vibration transmission characteristic. As the result, the audio base passes through vibration one direction and prevent opposite direction in specific frequency range. The same characteristic is obtained for vibration energy put in to audio-base. These characteristics correspond with experimental results on vibration velocity observed on the surfaces of test pieces shaped in rotating exponential curve. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Audio Equipment / Exponential Horn / Audio Base / Wave equation / Vibration Transmission |
| Paper # | EA2016-62,EMM2016-68 |
| Date of Issue | 2016-11-10 (EA, EMM) |
| Conference Information | |
| Committee | EA / EMM |
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| Conference Date | 2016/11/17(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Compal Hall (Oita) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics |
| Chair | Mitsunori Mizumachi(Kyushu Inst. of Tech.) / Akinori Ito(Tohoku Univ.) |
| Vice Chair | Yoichi Haneda(Univ. of Electro-Comm.) / Suehiro Shimauchi(NTT) / Masaki Kawamura(Yamaguchi Univ.) / Hirohisa Hioki(Kyoto Univ.) |
| Secretary | Yoichi Haneda(KDDI R&D Labs.) / Suehiro Shimauchi(Akita Pref. Univ.) / Masaki Kawamura(Nagasaki Univ.) / Hirohisa Hioki(Osaka Pref. Univ.) |
| Assistant | Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / TREVINO Jorge(Tohoku Univ.) / Rui Shogenji(Shizuoka Univ.) / Masaaki Fujiyoshi(Tokyo Metropolitan Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Enriched MultiMedia |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Theoretical analysis of vibration transmission characteristics of audio base having rotating exponential horn and experimental result |
| Sub Title (in English) | |
| Keyword(1) | Audio Equipment |
| Keyword(2) | Exponential Horn |
| Keyword(3) | Audio Base |
| Keyword(4) | Wave equation |
| Keyword(5) | Vibration Transmission |
| 1st Author's Name | Masahide Kita |
| 1st Author's Affiliation | Kindai University(Kindai Univ.) |
| 2nd Author's Name | Kiminobu Nishimura |
| 2nd Author's Affiliation | Kindai University(Kindai Univ.) |
| 3rd Author's Name | Kenji Manpuku |
| 3rd Author's Affiliation | Kindai University(Kindai Univ.) |
| Date | 2016-11-18 |
| Paper # | EA2016-62,EMM2016-68 |
| Volume (vol) | vol.116 |
| Number (no) | EA-302,EMM-303 |
| Page | pp.pp.85-90(EA), pp.85-90(EMM), |
| #Pages | 6 |
| Date of Issue | 2016-11-10 (EA, EMM) |