| Presentation | 2012-03-09 Active Noise Control System for Factory Noise Hirofumi TETSU, Yoshinobu KAJIKAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Manufacturing equipment generates a serious noise (over 90 dB) in the factory. Hence, workers are exposed to the industrial noise for many hours and cannot communicate with each other. We therefore attempt to implement an active noise control (ANC) system in order to reduce the industrial noise. It is important to raise the correlation between a reference signal and an error signal in a feedforward ANC system for the noise in the factory. In order to raise the correlation, the distance between the reference and the error microphones must be shortened, or many microphones must be utilized. However, if many microphones are used, the computational complexity increases. Hence, we apply a parametric array loudspeaker as the control (secondary) source. In this case, the increase of sound pressure level in the uncontrolled area may be avoided because the parametric array loudspeaker has the feature of superdirectivity. In this paper, therefore, we examine the ANC system using the parametric array loudspeaker for the noise in the factory. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | active noise control / feedforward control / parametric array loudspeaker / factory noise |
| Paper # | CAS2011-152,SIP2011-172,CS2011-144 |
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| Conference Information | |
| Committee | CAS |
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| Conference Date | 2012/3/1(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Circuits and Systems (CAS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Active Noise Control System for Factory Noise |
| Sub Title (in English) | |
| Keyword(1) | active noise control |
| Keyword(2) | feedforward control |
| Keyword(3) | parametric array loudspeaker |
| Keyword(4) | factory noise |
| 1st Author's Name | Hirofumi TETSU |
| 1st Author's Affiliation | Faculty of Engineering Science, Kansai University() |
| 2nd Author's Name | Yoshinobu KAJIKAWA |
| 2nd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| Date | 2012-03-09 |
| Paper # | CAS2011-152,SIP2011-172,CS2011-144 |
| Volume (vol) | vol.111 |
| Number (no) | 465 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |