Time-frequency-bin-wise beamformer selection and masking for speech enhancement in underdetermined noisy scenarios

Kouei Yamaoka, Andreas Brendel, Nobutaka Ono, Shoji Makino, Michael Buerger, Takeshi Yamada, Walter Kellermann

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

In this paper, we present a speech enhancement method using two microphones for underdetermined situations. A conventional speech enhancement method for underdetermined situations is time-frequency masking, where speech is enhanced by multiplying zero or one to each time-frequency component appropriately. Extending this method, we switch multiple preconstructed beamformers at each time-frequency bin, each of which suppresses a particular interferer. This method can suppress an interferer even when both the target and an interferer are simultaneously active at a given time-frequency bin. As a switching criterion, selection of minimum value of the outputs of the all beamformers at each time-frequency bin is investigated. Additionally, another method using direction of arrival estimation is also investigated. In experiments, we confirmed that the proposed methods were superior to conventional time-frequency masking and fixed beamforming in the performance of speech enhancement.

本文言語English
ホスト出版物のタイトル2018 26th European Signal Processing Conference, EUSIPCO 2018
出版社European Signal Processing Conference, EUSIPCO
ページ1582-1586
ページ数5
ISBN(電子版)9789082797015
DOI
出版ステータスPublished - 2018 11月 29
外部発表はい
イベント26th European Signal Processing Conference, EUSIPCO 2018 - Rome, Italy
継続期間: 2018 9月 32018 9月 7

出版物シリーズ

名前European Signal Processing Conference
2018-September
ISSN(印刷版)2219-5491

Conference

Conference26th European Signal Processing Conference, EUSIPCO 2018
国/地域Italy
CityRome
Period18/9/318/9/7

ASJC Scopus subject areas

  • 信号処理
  • 電子工学および電気工学

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