| Presentation | 2021-11-15 [Poster Presentation] Noise suppression by instantaneous spectral subtraction based on simultaneous estimation of amplitude and phase of noise spectrum Koki Takenaka, Kenji Ozawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Noise suppression using a microphone array and neural networks (NN) has been investigated .In this study, the output from a microphone array is converted into a spatio-temporal sound pressure distribution image, and its two-dimensional (2D) amplitude and phase spectrum obtained by the 2D fast Fourier transform is used for noise suppression. In addition, a system that can handle multiple noise sources is proposed and its performance is evaluated. In order to reflect the dependence of the phase characteristics on the amplitude characteristics, a DNN that simultaneously estimates the amplitude and phase of the noise spectrum was used to improve the suppression performance. Results of computer simulations showed noise suppression of about $-23 sim -20$~dB for two noise sources. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microphone array / Two-dimensional spectrum / Neural network / Direction of arrival / Multiple noise suppression |
| Paper # | EA2021-42,EMM2021-69 |
| Date of Issue | 2021-11-08 (EA, EMM) |
| Conference Information | |
| Committee | EMM / EA / ASJ-H |
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| Conference Date | 2021/11/15(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Beginners Session] Engineering/Electro Acoustics, Content Processing, Digital Watermarking, Psychological and Physiological Acoustics, and Related Topics |
| Chair | Ryoichi Nishimura(NICT) / Yoshinobu Kajikawa(Kansai Univ.) / 加藤 宏明(NICT) |
| Vice Chair | Masaaki Fujiyoshi(Tokyo Metropolitan Univ.) / Masatsugu Ichino(Univ. of Electro-Comm.) / Kenichi Furuya(Oita Univ.) / Shoichi Koyama(Univ. of Tokyo) / 坂本 修一(東北大) |
| Secretary | Masaaki Fujiyoshi(Utsunomiya Univ.) / Masatsugu Ichino(NICT) / Kenichi Furuya(NTT) / Shoichi Koyama(RitsumeikanUniv.) / 坂本 修一(東大) |
| Assistant | Shoko Imaizumi(Chiba Univ.) / Youichi Takashima(Kaishi Professional Univ.) / Yukou Wakabayashi(Tokyo Metropolitan Univ.) / Tatsuya Komatsu(LINE) |
| Paper Information | |
| Registration To | Technical Committee on Enriched MultiMedia / Technical Committee on Engineering Acoustics / Auditory Research Meeting |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Noise suppression by instantaneous spectral subtraction based on simultaneous estimation of amplitude and phase of noise spectrum |
| Sub Title (in English) | |
| Keyword(1) | Microphone array |
| Keyword(2) | Two-dimensional spectrum |
| Keyword(3) | Neural network |
| Keyword(4) | Direction of arrival |
| Keyword(5) | Multiple noise suppression |
| 1st Author's Name | Koki Takenaka |
| 1st Author's Affiliation | Graduate School, University of Yamanashi(Grad School, Univ. of Yamanashi) |
| 2nd Author's Name | Kenji Ozawa |
| 2nd Author's Affiliation | Graduate School, University of Yamanashi(Grad School, Univ. of Yamanashi) |
| Date | 2021-11-15 |
| Paper # | EA2021-42,EMM2021-69 |
| Volume (vol) | vol.121 |
| Number (no) | EA-246,EMM-247 |
| Page | pp.pp.85-90(EA), pp.85-90(EMM), |
| #Pages | 6 |
| Date of Issue | 2021-11-08 (EA, EMM) |