| Paper Abstract and Keywords |
| Presentation |
2018-08-23 13:45
Study on sound source separation by spectral subtraction based on instantaneous estimation of noise spectrum
Kenji Ozawa, Masanori Morise (Univ. of Yamanashi), Shuichi Sakamoto (Tohoku Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This project aims to achieve sound source separation based on the two-dimensional fast Fourier trans- form (2D FFT) of a spatio-temporal sound pressure distribution image that is composed from the outputs of a microphone array. The target sound that arrives from the front of the array forms vertical stripes in the image, and therefore, its spectral components are perfectly localized as direct current (DC) components along the spatial fre- quency axis in the 2D-FFT spectrum. In this study, noise suppression was performed by spectral subtraction, after the DC components of noise were instantaneously estimated from the spectrum. As a result, the noise reduction performance of the proposed method with a 14-cm-long array was approximately 30 dB when the number of noise sources was one, which was much better than that of the conventional delay and sum beamformer method. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
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| Reference Info. |
IEICE Tech. Rep., vol. 118, pp. 19-24, Aug. 2018. |
| Paper # |
|
| Date of Issue |
2018-08-16 (EA) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
| Download PDF |
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| Conference Information |
| Committee |
EA ASJ-H |
| Conference Date |
2018-08-23 - 2018-08-24 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Tohoku Gakuin Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Engineering/Electro Acoustics, Psychological and Physiological Acoustics, and Related Topics |
| Paper Information |
| Registration To |
ASJ-H |
| Conference Code |
2018-08-EA-H |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Study on sound source separation by spectral subtraction based on instantaneous estimation of noise spectrum |
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| 1st Author's Name |
Kenji Ozawa |
| 1st Author's Affiliation |
University of Yamanashi (Univ. of Yamanashi) |
| 2nd Author's Name |
Masanori Morise |
| 2nd Author's Affiliation |
University of Yamanashi (Univ. of Yamanashi) |
| 3rd Author's Name |
Shuichi Sakamoto |
| 3rd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2018-08-23 13:45:00 |
| Presentation Time |
25 minutes |
| Registration for |
ASJ-H |
| Paper # |
EA2018-31 |
| Volume (vol) |
vol.118 |
| Number (no) |
no.190 |
| Page |
pp.19-24 |
| #Pages |
6 |
| Date of Issue |
2018-08-16 (EA) |