| Presentation | 2016-03-28 [Poster Presentation] Optimization of delay and sum beamformer using deep neural network Maya Origuchi, Mitsunori Mizumachi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Delay-and-sum beamformers could yield distortion-less target signals, but could not control the beam-pattern except the direction of the target signal. The weights used in a delay-and-sum beamformer can be optimized the beam-pattern using a neural network. The resultant weights by non-linear leaning cause harmonic distortion in the higher frequency range. In this study, an advanced beamformer is proposed to achieve a sharper main lobe and reduction of the harmonic distortion. The proposed method substitutes the deep neural network for the conventional neural network, and employs non-equally-spaced microphones and sub-band processing. It is confirmed that the proposed beamformer has advantage in sharpening the main-lobe and reducing the harmonic distortion over the conventional method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Deep Neural Network / delay and sum beamformer / optimization / sub-band processing |
| Paper # | EA2015-75,SIP2015-124,SP2015-103 |
| Date of Issue | 2016-03-21 (EA, SIP, SP) |
| Conference Information | |
| Committee | EA / SP / SIP |
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| Conference Date | 2016/3/28(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Beppu International Convention Center B-ConPlaza |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Speech, Signal Processing, and Related Topics |
| Chair | Yoichi Haneda(Univ. of Electro-Comm.) / Kazunori Mano(Shibaura Inst. of Tech.) / Osamu Houshuyama(NEC) |
| Vice Chair | Yukio Iwaya(Tohoku Gakuin Univ.) / Mitsunori Mizumachi(Kyushu Inst. of Tech.) / Norihide Kitaoka(Tokushima Univ.) / Makoto Nakashizuka(Chiba Inst. of Tech.) / Masahiro Okuda(Univ. of Kitakyushu) |
| Secretary | Yukio Iwaya(NTT) / Mitsunori Mizumachi(KDDI R&D Labs.) / Norihide Kitaoka(Tokyo City Univ.) / Makoto Nakashizuka(Kobe Univ.) / Masahiro Okuda(NEC) |
| Assistant | Shoichi Koyama(Univ. of Tokyo) / Takashi Nose(Tohoku Univ.) / Taichi Asami(NTT) / Takamichi Miyata(Chiba Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Speech / Technical Committee on Signal Processing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Optimization of delay and sum beamformer using deep neural network |
| Sub Title (in English) | |
| Keyword(1) | Deep Neural Network |
| Keyword(2) | delay and sum beamformer |
| Keyword(3) | optimization |
| Keyword(4) | sub-band processing |
| 1st Author's Name | Maya Origuchi |
| 1st Author's Affiliation | Kyushu Institute of Technology(KIT) |
| 2nd Author's Name | Mitsunori Mizumachi |
| 2nd Author's Affiliation | Kyushu Institute of Technology(KIT) |
| Date | 2016-03-28 |
| Paper # | EA2015-75,SIP2015-124,SP2015-103 |
| Volume (vol) | vol.115 |
| Number (no) | EA-521,SIP-522,SP-523 |
| Page | pp.pp.51-56(EA), pp.51-56(SIP), pp.51-56(SP), |
| #Pages | 6 |
| Date of Issue | 2016-03-21 (EA, SIP, SP) |