作者: Hiroshi Sawada , Shoko Araki , Shoji Makino
DOI: 10.1109/MLSP.2007.4414280
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摘要: This paper describes the frequency-domain approach to blind source separation of speech/audio signals that are convolutively mixed in a real room environment. With application short- time Fourier transforms, convolutive mixtures domain can be approximated as multiple instantaneous frequency domain. We employ complex-valued independent component analysis (ICA) separate each bin. Then, permutation ambiguity ICA solutions should aligned so separated constructed properly propose alignment method based on clustering activity sequences bin-wise signals. achieved overall winner status MLSP 2007 Data Analysis Competition presented method.