| Presentation | 2007-07-27 Howling Canceller Based on Sparseness of Speech for Hands-Free System Kazunori KOBAYASHI, Kenichi FURUYA, Yoichi HANEDA, Akitoshi KATAOKA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In hands-free communication system, a voice switch is used for howling cancellation. However, the quality of duplex communication is low in the conventional voice switches because the speech signal is suppressed during double-talk. To solve this problem, we proposed a frequency-domain voice switch based on sparseness of speech in this report. The condition of howling cancellation in the frequency-domain voice switch is derived, and the computer simulation results clarified the correctness of the derived condition. The experimental results demonstrated that the degradation of the speech signal in the proposed method is lower than that in the convetional method |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Howling / voice switch / hands-free / sparseness / teleconference |
| Paper # | EA2007-35 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2007/7/20(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) | Howling Canceller Based on Sparseness of Speech for Hands-Free System |
| Sub Title (in English) | |
| Keyword(1) | Howling |
| Keyword(2) | voice switch |
| Keyword(3) | hands-free |
| Keyword(4) | sparseness |
| Keyword(5) | teleconference |
| 1st Author's Name | Kazunori KOBAYASHI |
| 1st Author's Affiliation | NTT Cyber Space Laboratories, Nippon Telegraph and Telephone Corporation() |
| 2nd Author's Name | Kenichi FURUYA |
| 2nd Author's Affiliation | NTT Cyber Space Laboratories, Nippon Telegraph and Telephone Corporation |
| 3rd Author's Name | Yoichi HANEDA |
| 3rd Author's Affiliation | NTT Cyber Space Laboratories, Nippon Telegraph and Telephone Corporation |
| 4th Author's Name | Akitoshi KATAOKA |
| 4th Author's Affiliation | NTT Cyber Space Laboratories, Nippon Telegraph and Telephone Corporation |
| Date | 2007-07-27 |
| Paper # | EA2007-35 |
| Volume (vol) | vol.107 |
| Number (no) | 170 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |