Sound source separation using null-beamforming and spectral subtraction for mobile devices

Shintaro Takada*, Satoshi Kanba, Tetsuji Ogawa, Kenzo Akagiri, Tetsunori Kobayashi

*この研究の対応する著者

研究成果: Conference contribution

8 被引用数 (Scopus)

抄録

This paper presents a new type of speech segregation method for mobile devices in noisy sound situation, where two or more speakers are talking simultaneously. The proposed method consists of multiple null-beamformers, their minimum power channel selection and spectral subtraction. The proposed method is performed with space-saving and coplanar microphone arrangements and low-cost calculations, which are the very important requirements for the mobile application. Effectiveness of the proposed method is clarified in the segregation and the recognition experiments of two simultaneous continuous speeches: the method improved the PESQ-based MOS value by about one point and reduced 70% of word recognition errors compared with non-processing.

本文言語English
ホスト出版物のタイトル2007 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA
ページ30-33
ページ数4
DOI
出版ステータスPublished - 2007 12 1
イベント2007 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA - New Paltz, NY, United States
継続期間: 2007 10 212007 10 24

出版物シリーズ

名前IEEE Workshop on Applications of Signal Processing to Audio and Acoustics

Conference

Conference2007 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA
国/地域United States
CityNew Paltz, NY
Period07/10/2107/10/24

ASJC Scopus subject areas

  • 信号処理

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