Evaluation of separation and dereverberation performance in frequency domain blind source separation

Ryo Mukai*, Shoko Araki, Hiroshi Sawada, Shoji Makino

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

In this paper, we propose a new method for evaluating the separation and dereverberation performance of a convolutive blind source separation (BSS) system, and investigate a separating system obtained by employing frequency domain BSS based on independent component analysis (ICA). As a result, we reveal the acoustical characteristics of the frequency domain BSS for convolutive mixture of speech signals. We show that the separating system removes the direct sound of a jammer signal even when the frame length is relatively short, and it also reduces the reverberation of the jammer according to the frame length. We also confirm that the reverberation of the target is not reduced. Moreover, we propose a technique, suggested by the experimental results, for improving the quality of the separated signals by removing pre-echo noise.

本文言語English
ページ(範囲)119-126
ページ数8
ジャーナルAcoustical Science and Technology
25
2
DOI
出版ステータスPublished - 2004 3
外部発表はい

ASJC Scopus subject areas

  • 音響学および超音波学

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