| Presentation | 2015-12-18 Effect of AC Coupling of Ground Connection between Audio Equipment on Propagation Noise Suppression and Inter-Modulation Distortion Reduction Shuhei Tagaya, Takahiro Yoshida, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As we consider that the propagation noise on the ground line of interconnection between audio equipment affect their playback sound quality and integrity, we tested AC coupling of the signal ground on the single-ended analog audio transmission line between audio equipment. From subjective evaluation results, we found this AC coupling method improved subjective playback sound quality. Therefore, in this study, we measured the propagation noise current waveforms of the ground line and inter-modulation distortion in their playback audio waveforms for investigation on the sound quality improvement effect and the mechanism of the AC coupling of ground connection between audio equipment. As a result, we confirmed effects of AC coupling of the ground connection on propagation noise suppression and inter modulation distortion suppression. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | AC coupling / Noise suppression / Inter-modulation distortion / Ground line / Audio equipment |
| Paper # | EMCJ2015-93 |
| Date of Issue | 2015-12-11 (EMCJ) |
| Conference Information | |
| Committee | EMCJ / IEE-EMC |
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| Conference Date | 2015/12/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | TOYOTA CENTRAL R&D LABS., INC. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Power electronics, EMC |
| Chair | Hideaki Sone(Tohoku Univ.) / Ken Kawamata(Tohoku-gakuin Univ.) |
| Vice Chair | Osami Wada(Kyoto Univ.) |
| Secretary | Osami Wada(Okayama Univ.) / (Hitachi) |
| Assistant | Atsuhiro Takahashi(Toyota Central R&D Labs.) / Yoshiki Kayano(Akita Univ.) / Yusaku Katsube(Hitachi) / Yu-ichi Hayashi(Tohoku-gakuin Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Compatibility / Technical Meeting on Electromagnetic Compatibility |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of AC Coupling of Ground Connection between Audio Equipment on Propagation Noise Suppression and Inter-Modulation Distortion Reduction |
| Sub Title (in English) | |
| Keyword(1) | AC coupling |
| Keyword(2) | Noise suppression |
| Keyword(3) | Inter-modulation distortion |
| Keyword(4) | Ground line |
| Keyword(5) | Audio equipment |
| 1st Author's Name | Shuhei Tagaya |
| 1st Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| 2nd Author's Name | Takahiro Yoshida |
| 2nd Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| Date | 2015-12-18 |
| Paper # | EMCJ2015-93 |
| Volume (vol) | vol.115 |
| Number (no) | EMCJ-377 |
| Page | pp.pp.19-23(EMCJ), |
| #Pages | 5 |
| Date of Issue | 2015-12-11 (EMCJ) |