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- W2812260 abstract "This paper describes the circularity problem of frequencydomain blind source separation (BSS), and presents a new method for solving it. Frequency-domain BSS performs independent component analysis (ICA) in each frequency bin. It is more efficient than time-domain BSS where ICA is applied to convolutive mixtures. However, frequency-domain BSS has two problems. The first is the permutation problem, for which we have recently proposed a method. It provides a robust and precise solution for the permutation problem and reveals the influence of the second problem, namely the circularity problem. Our solution for this second problem is based on spectral smoothing by windowing. However, the direct application of windowing changes the frequency responses for separation obtained by ICA and causes an error. Therefore, we adjust the frequency responses before windowing so that the error is minimized. The effectiveness of the method is shown by experimental results for the separation of up to four sources." @default.
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- W2812260 date "2003-01-01" @default.
- W2812260 modified "2023-09-27" @default.
- W2812260 title "SPECTRAL SMOOTHING FOR FREQUENCY-DOMAIN BLIND SOURCE SEPARATION" @default.
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