| Presentation | 2001/5/18 On a acoustic measurement system with commercial audio devices. Yasuhisa Ishida, Yuichi Noro, Kazuhiro Kuno, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The purpose of this research is to construct the impulse response measurement system using commercial audio devices. When an impulse response is measured by M-squence correlation method, in order to raise accuracy, synchronous sampling and/or synchronous addition are required. However, since each commercial audio device operates according to the independent internal clock, even if devices of the same sample rate (nominal value) were used, perfect synchronous sampling is impossible. This report shows how to solve, this problem by adding an easy circuit. And, in order to check the measurement accuracy, the impulse response and the transmission characteristic of the system itself were measured. Furthermore, transmission characteristics of two actual rooms were measured using the proposed system, and were compared with the measurement results by the frequency sweep method. Consequently, it was checked that the proposed system has sufficient accuracy for practical use. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | acoustic measurement / M-sequence correlation method / FHT / synchronism addition / impulse response |
| Paper # | EA2001-13 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2001/5/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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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) | On a acoustic measurement system with commercial audio devices. |
| Sub Title (in English) | |
| Keyword(1) | acoustic measurement |
| Keyword(2) | M-sequence correlation method |
| Keyword(3) | FHT |
| Keyword(4) | synchronism addition |
| Keyword(5) | impulse response |
| 1st Author's Name | Yasuhisa Ishida |
| 1st Author's Affiliation | Faculty of Engineering, Mie University() |
| 2nd Author's Name | Yuichi Noro |
| 2nd Author's Affiliation | Faculty of Engineering, Mie University |
| 3rd Author's Name | Kazuhiro Kuno |
| 3rd Author's Affiliation | Faculty of Engineering, Mie University |
| Date | 2001/5/18 |
| Paper # | EA2001-13 |
| Volume (vol) | vol.101 |
| Number (no) | 73 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |