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- W2090820900 abstract "In this paper, independent component analysis (ICA) in a subband domain has been extended into a feed-forward network. The feed-forward network maximizes mutual independence of separated current frames using information from the both current and previous multi-channel frames of speech signals captured by a microphone array. To guide into a proper separation preventing permutation and arbitrary scaling, we not only rely on the steered response for the first tap of the demixing filter but also penalize on the direction thus drastically increasing the mean squared error with the spatial filtered output. After convergence, by applying instantaneous direction of arrival (IDOA) based post-processing, we can additionally suppress the leakage of the interference as well as the reverberated target signal. The signal to interference ratio (SIR) is improved more than 20 dBC for distances up to 2.7 m and angle differences down to 26°." @default.
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- W2090820900 date "2010-01-01" @default.
- W2090820900 modified "2023-09-26" @default.
- W2090820900 title "Reverberated speech signal separation based on regularized subband feedforward ICA and instantaneous direction of arrival" @default.
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- W2090820900 doi "https://doi.org/10.1109/icassp.2010.5496252" @default.
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