| Presentation | 2009-10-23 A study on the input-output characteristics of audio interface for PC Masanori SHIGA, Yoshihiro KOBAYASHI, Hirokazu OCHIAI, Yutaka KANEDA, Hirokazu FUKUSHIMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, an audio interface (AIF) that can connect with a personal computer (PC) has been widely used in acoustic measurements. In this study, we investigated the characteristics of a low-pass filter (LPF) and a high-pass filter (HPF) implemented in an AIF. The main results are as follows: 1) The LPF response does not fully attenuate at Nyquist frequency Fs/2 to maintain the flatness of the pass-band response; hence, measurement error occurs owing to aliasing. 2) Two types of LPF time response, namely, linear-phase response and steep onset time response, are observed. 3) The AIF implements the HPF to cut the DC component, and its response is discontinuous at the time origin and continues for a long time. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | audio interface / filter characteristic / low-pass filter / high-pass filter / impulse response |
| Paper # | EA2009-67 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2009/10/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | A study on the input-output characteristics of audio interface for PC |
| Sub Title (in English) | |
| Keyword(1) | audio interface |
| Keyword(2) | filter characteristic |
| Keyword(3) | low-pass filter |
| Keyword(4) | high-pass filter |
| Keyword(5) | impulse response |
| 1st Author's Name | Masanori SHIGA |
| 1st Author's Affiliation | Faculty of Engineering, Tokyo Denki University() |
| 2nd Author's Name | Yoshihiro KOBAYASHI |
| 2nd Author's Affiliation | Faculty of Engineering, Tokyo Denki University |
| 3rd Author's Name | Hirokazu OCHIAI |
| 3rd Author's Affiliation | Faculty of Engineering, Tokyo Denki University |
| 4th Author's Name | Yutaka KANEDA |
| 4th Author's Affiliation | Faculty of Engineering, Tokyo Denki University |
| 5th Author's Name | Hirokazu FUKUSHIMA |
| 5th Author's Affiliation | ONSOKU ELECTRONIC CORPORATION |
| Date | 2009-10-23 |
| Paper # | EA2009-67 |
| Volume (vol) | vol.109 |
| Number (no) | 240 |
| Page | pp.pp.- |
| #Pages | 6 |
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