| Presentation | 2014-01-27 Study of wind noise reduction using a microphone array Naoto SAKATA, Kihiro HASHINO, Hirofumi NAKAJIMA, Kazunori MIYOSHI, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this report, we analyze characteristics of wind-induced noise to reduce itself. We record wind-induced noises using a 2-channel microphone array in different conditions of wind speed, direction and microphone distance as parameters. The measures of analyzing are spectrogram, amplitude difference, phase difference, group delay and coherence functions for complex, amplitude and power. As a result, the correlation between 2 channels was low because of big changes of amplitude and phase difference. The value of complex coherence function was 0.8 at the peak of frequency less than 125 Hz, and less than 0.2 between 125 Hz and 1kHz. On the other hand, the values of amplitude and power coherence functions was more than 0.4 for the major frequency band of the wind-induced noise less than 250Hz. This results show that spectrum subtraction is valid for wind-induced noises. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wind noise / Wind-induced noise / Noise reduction / Microphone array |
| Paper # | EA2013-107 |
| Date of Issue |
| Conference Information | |
| Committee | EA |
|---|---|
| Conference Date | 2014/1/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study of wind noise reduction using a microphone array |
| Sub Title (in English) | |
| Keyword(1) | Wind noise |
| Keyword(2) | Wind-induced noise |
| Keyword(3) | Noise reduction |
| Keyword(4) | Microphone array |
| 1st Author's Name | Naoto SAKATA |
| 1st Author's Affiliation | () |
| 2nd Author's Name | Kihiro HASHINO |
| 2nd Author's Affiliation | Faculty of Information, Kogakuin University |
| 3rd Author's Name | Hirofumi NAKAJIMA |
| 3rd Author's Affiliation | Faculty of Information, Kogakuin University |
| 4th Author's Name | Kazunori MIYOSHI |
| 4th Author's Affiliation | Faculty of Information, Kogakuin University |
| Date | 2014-01-27 |
| Paper # | EA2013-107 |
| Volume (vol) | vol.113 |
| Number (no) | 413 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |