On microphone arrangement for multichannel speech enhancement based on nonnegative matrix factorization in time-channel domain

Yoshikazu Murase, Hironobu Chiba, Nobutaka Ono, Shigeki Miyabe, Takeshi Yamada, Shoji Makino

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In this paper, we investigate the relationship between the way microphones are arranged and the degree to which speech is enhanced using the transfer-function-gain nonnegative matrix factorization (NMF), which is an amplitude-based speech enhancement method that is suitable for use with an asynchronous distributed microphone array. In an asynchronous distributed microphone array, recording devices can be placed freely and the number of devices can be easily increased. Therefore, it is important that to determine the optimum microphone arrangement and the degree to which the performance is improved by using many microphones. We understood experimental evaluations to show that the performance by supervised NMF can achieve close to the ideal time-frequency masking with a sufficient number of microphones. We also show that the performance is better when more microphones are placed close to each source.

本文言語English
ホスト出版物のタイトル2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9786163618238
DOI
出版ステータスPublished - 2014 2 12
外部発表はい
イベント2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014 - Chiang Mai, Thailand
継続期間: 2014 12 92014 12 12

出版物シリーズ

名前2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014

Other

Other2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
国/地域Thailand
CityChiang Mai
Period14/12/914/12/12

ASJC Scopus subject areas

  • 信号処理
  • 情報システム

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