High-order contrasts for independent component analysis
Neural Computation
Blind separation of speech mixtures via time-frequency masking
IEEE Transactions on Signal Processing
ICA '09 Proceedings of the 8th International Conference on Independent Component Analysis and Signal Separation
EURASIP Journal on Audio, Speech, and Music Processing
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The problem of Blind Source Separation (BSS) of convolved acoustic signals is of great interest for many classes of applications such as in-car speech recognition, hands-free telephony or hearing devices. Due to the convolutive mixing process, the source separation is performed in the frequency domain, using Independent Component Analysis (ICA). However the quality of solution of the ICA-algorithms can be improved by applying time-frequency masking. In this paper we present a batch-algorithm for time-frequency masking using the time-frequency structure of separated signals.