| Presentation | 2019-03-14 [Poster Presentation] An Initialization Method for Multichannel Nonnegative Matrix Factorization using Nonnegative Independent Component Analysis Takahiro Ushijima, Takanobu Uramoto, Shingo Uenohara, Ken'ichi Furuya, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, devices that handle voice have become widely used, and there is a demand for a technique to extract only the target sound from the background sound. At that time, a technique for extracting only the target sound from the background sound is required. Sound source separation is a technique for extracting the target sound by separating mixed sound sources. MNMF(Multi-channel NMF)is a technique of sound source separation, and by extending NMF to multi-channel, high precision sound source separation using spatial information is possible. However, MNMF has a difficulty in an initial-value dependency of the separation performance because MNMF has much more free parameters than NMF. In conventional study on initialization, an initial value determination method using nonnegative independent component analysis for NMF has been proposed. However, this initial value determination method is for NMF of a single channel and there is a problem that it can not be applied to MNMF. In this research, we propose an initial value setting method to improve separation performance for MNMF. We propose a method to determine the initial value of MNMF using NICA. In the experiment, we separated the observation signals mixed with three sound sources and compared the separation accuracy. In conclusion, we were able to confirm improvement of separation accuracy in specific environment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sound source separation / nonnegative matrix factorization (NMF) / multi-channel NMF / nonnegative independent component analysis(NICA) |
| Paper # | EA2018-105,SIP2018-111,SP2018-67 |
| Date of Issue | 2019-03-07 (EA, SIP, SP) |
| Conference Information | |
| Committee | EA / SIP / SP |
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| Conference Date | 2019/3/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | i+Land nagasaki (Nagasaki-shi) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Signal Processing, Speech, and Related Topics |
| Chair | Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shogo Muramatsu(Niigata Univ.) / Yoichi Yamashita(Ritsumeikan Univ.) |
| Vice Chair | Kenichi Furuya(Oita Univ.) / Kanji Watanabe(Akita Pref. Univ.) / Naoyuki Aikawa(TUS) / Kazunori Hayashi(Osaka City Univ) / Akinobu Ri(Nagoya Inst. of Tech.) |
| Secretary | Kenichi Furuya(Shizuoka Inst. of Science and Tech.) / Kanji Watanabe(NHK) / Naoyuki Aikawa(Takushoku Univ.) / Kazunori Hayashi(Hiroshima Univ.) / Akinobu Ri(Kyoto Univ.) |
| Assistant | Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Katsumi Konishi(Hosei Univ.) / hyihsin(Takushoku Univ.) / Tomoki Koriyama(Tokyo Inst. of Tech.) / Satoshi Kobashikawa(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Signal Processing / Technical Committee on Speech |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] An Initialization Method for Multichannel Nonnegative Matrix Factorization using Nonnegative Independent Component Analysis |
| Sub Title (in English) | |
| Keyword(1) | sound source separation |
| Keyword(2) | nonnegative matrix factorization (NMF) |
| Keyword(3) | multi-channel NMF |
| Keyword(4) | nonnegative independent component analysis(NICA) |
| 1st Author's Name | Takahiro Ushijima |
| 1st Author's Affiliation | Oita University(Oita Univ.) |
| 2nd Author's Name | Takanobu Uramoto |
| 2nd Author's Affiliation | Oita University(Oita Univ.) |
| 3rd Author's Name | Shingo Uenohara |
| 3rd Author's Affiliation | Oita University(Oita Univ.) |
| 4th Author's Name | Ken'ichi Furuya |
| 4th Author's Affiliation | Oita University(Oita Univ.) |
| Date | 2019-03-14 |
| Paper # | EA2018-105,SIP2018-111,SP2018-67 |
| Volume (vol) | vol.118 |
| Number (no) | EA-495,SIP-496,SP-497 |
| Page | pp.pp.37-42(EA), pp.37-42(SIP), pp.37-42(SP), |
| #Pages | 6 |
| Date of Issue | 2019-03-07 (EA, SIP, SP) |