| Presentation | 2018-03-20 Study on Noise Suppression Method based on Modulation Spectrum Takuto Isoyama, Masashi Unoki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It is known that classical and typical methods for noise suppression can successfully suppress stationary noises. However, non-stationary noises such as intermittent and impulsive noises have not been sufficiently suppressed since these methods have not focused on temporal characteristics. This paper aims to investigate a method for suppressing the stationary, intermittent and impulsive noises besed on their modulation spectrum (MS) as temporal characteristics. MS features in the stationary, intermittent and impulsive noises were investigated and these features were removed from the observed signal to suppress these noises. The direct-current component of MS in the stationary noise, harmonicity of MS in the intermittent noise, and higher modulation-frequency components in the impulsive noise were removed. As results, the following advantages were confirmed: (1) sound pressure level of the noise was decreased, (2) signal-to-noise ratio of the noisy speech was improved, and (3) loudness and roughness of the noises was decreased. These results indicated that the non-stationary noises are successfully suppressed using their MS characteristics. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Noise suppression / modulation spectral analysis / intermittent noise / impulsive noise |
| Paper # | EA2017-168,SIP2017-177,SP2017-151 |
| Date of Issue | 2018-03-12 (EA, SIP, SP) |
| Conference Information | |
| Committee | SIP / EA / SP / MI |
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| Conference Date | 2018/3/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Speech, Engineering/Electro Acoustics, Signal Processing, and Related Topics [SIP, EA, SP]/ Medical Image Engineering, Analysis, Recognition, etc. [MI] |
| Chair | Masahiro Okuda(Univ. of Kitakyushu) / Suehiro Shimauchi(NTT) / Yoichi Yamashita(Ritsumeikan Univ.) / Kensaku Mori(Nagoya Univ.) |
| Vice Chair | Shogo Muramatsu(Niigata Univ.) / Naoyuki Aikawa(TUS) / Mitsunori Mizumachi(Kyutech) / Hiroki Mori(Utsunomiya Univ.) / Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.) |
| Secretary | Shogo Muramatsu(Chiba Inst. of Tech.) / Naoyuki Aikawa(Takushoku Univ.) / Mitsunori Mizumachi(Akita Pref. Univ.) / Hiroki Mori(Shizuoka Inst. of Science and Tech.) / Yoshiki Kawata(Shizuoka Univ.) / Yuichi Kimura(Meijo Univ.) |
| Assistant | Masayoshi Nakamoto(Hiroshima Univ.ひろ) / TREVINO Jorge(Tohoku Univ.) / Nobutaka Ito(NTT) / Kei Hashimoto(Nagoya Inst. of Tech.) / Satoshi Kobashikawa(NTT) / Ryo Haraguchi(Univ. of Hyogo) / Yasushi Hirano(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Signal Processing / Technical Committee on Engineering Acoustics / Technical Committee on Speech / Technical Committee on Medical Imaging |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Noise Suppression Method based on Modulation Spectrum |
| Sub Title (in English) | |
| Keyword(1) | Noise suppression |
| Keyword(2) | modulation spectral analysis |
| Keyword(3) | intermittent noise |
| Keyword(4) | impulsive noise |
| 1st Author's Name | Takuto Isoyama |
| 1st Author's Affiliation | Japan Advanced Institute of Science and Technology(JAIST) |
| 2nd Author's Name | Masashi Unoki |
| 2nd Author's Affiliation | Japan Advanced Institute of Science and Technology(JAIST) |
| Date | 2018-03-20 |
| Paper # | EA2017-168,SIP2017-177,SP2017-151 |
| Volume (vol) | vol.117 |
| Number (no) | EA-515,SIP-516,SP-517 |
| Page | pp.pp.361-366(EA), pp.361-366(SIP), pp.361-366(SP), |
| #Pages | 6 |
| Date of Issue | 2018-03-12 (EA, SIP, SP) |