| Presentation | 2020-03-02 Multichannel NMF with Joint-Diagonalizable Constraint Based on Generalized Gaussian Distribution for Blind Source Separation Keigo Kamo, Yuki Kubo, Norihiro Takamune, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, Kazunobu Kondo, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Multichannel nonnegative matrix factorization (MNMF) is a blind source separation technique, which employs the full-rank spatial covariance matrices and can simulate the situations where the reverberation is strong and the sources are not point sources. Source signals' spectrograms were assumed to follow a multivariate complex Gaussian distribution in MNMF. In this paper, we propose the model extension of MNMF to a multivariate complex generalized Gaussian distribution and derive a new parameter update rule using the auxiliary-function-based method, especially in the sub-Gaussian model. Since the cost function of MNMF of this multivariate complex generalized Gaussian model is hard to minimize, we additionally introduce the joint-diagonalizable constraint, which is the same one of FastMNMF, to MNMF, and transform the cost function to the form to which we can apply the auxiliary functions, deriving the valid parameter update rules. From blind source separation experiments, we show that the proposed method outperforms the conventional methods in source-separation accuracy. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | blind source separation / spatial covariance model / joint diagonalization / multivariate complex sub-Gaussian distribution |
| Paper # | EA2019-103,SIP2019-105,SP2019-52 |
| Date of Issue | 2020-02-24 (EA, SIP, SP) |
| Conference Information | |
| Committee | SP / EA / SIP |
|---|---|
| Conference Date | 2020/3/2(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Industry Support Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hisashi Kawai(NICT) / Kenichi Furuya(Oita Univ.) / Naoyuki Aikawa(TUS) |
| Vice Chair | Akinobu Ri(Nagoya Inst. of Tech.) / Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / Kazunori Hayashi(Osaka City Univ) / Yukihiro Bandou(NTT) |
| Secretary | Akinobu Ri(Kyoto Univ.) / Suehiro Shimauchi(Waseda Univ.) / Shigeto Takeoka(NHK) / Kazunori Hayashi(Univ. of Tokyo) / Yukihiro Bandou(Hiroshima Univ.) |
| Assistant | Tomoki Koriyama(Univ. of Tokyo) / Yusuke Ijima(NTT) / Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Kenjiro Sugimoto(Waseda Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Speech / Technical Committee on Engineering Acoustics / Technical Committee on Signal Processing |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multichannel NMF with Joint-Diagonalizable Constraint Based on Generalized Gaussian Distribution for Blind Source Separation |
| Sub Title (in English) | |
| Keyword(1) | blind source separation |
| Keyword(2) | spatial covariance model |
| Keyword(3) | joint diagonalization |
| Keyword(4) | multivariate complex sub-Gaussian distribution |
| 1st Author's Name | Keigo Kamo |
| 1st Author's Affiliation | The University of Tokyo(UTokyo) |
| 2nd Author's Name | Yuki Kubo |
| 2nd Author's Affiliation | The University of Tokyo(UTokyo) |
| 3rd Author's Name | Norihiro Takamune |
| 3rd Author's Affiliation | The University of Tokyo(UTokyo) |
| 4th Author's Name | Daichi Kitamura |
| 4th Author's Affiliation | National Institute of Technology, Kagawa Collage(NIT Kagawa) |
| 5th Author's Name | Hiroshi Saruwatari |
| 5th Author's Affiliation | The University of Tokyo(UTokyo) |
| 6th Author's Name | Yu Takahashi |
| 6th Author's Affiliation | Yamaha Corporation(Yamaha) |
| 7th Author's Name | Kazunobu Kondo |
| 7th Author's Affiliation | Yamaha Corporation(Yamaha) |
| Date | 2020-03-02 |
| Paper # | EA2019-103,SIP2019-105,SP2019-52 |
| Volume (vol) | vol.119 |
| Number (no) | EA-439,SIP-440,SP-441 |
| Page | pp.pp.13-19(EA), pp.13-19(SIP), pp.13-19(SP), |
| #Pages | 7 |
| Date of Issue | 2020-02-24 (EA, SIP, SP) |