Blind vector deconvolution: Convolutive mixture models in short-time fourier transform domain

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Abstract

For short-time Fourier Transform (STFT) domain ICA, dealing with reverberant sounds is a significant issue. It often invites a dilemma on STFT frame length: frames shorter than reverberation time (short frames) generate incomplete instantaneous mixtures, while too long frames may disturb the separation. To improve the separation of such reverberant sounds, the authors propose a new framework which accounts for STFT with short frames. In this framework, time domain convolutive mixtures are transformed to STFT domain convolutive mixtures. For separating the mixtures, an approach of applying another STFT is presented so as to treat them as instantaneous mixtures. The authors experimentally confirmed that this framework outperforms the conventional STFT domain ICA. © Springer-Verlag Berlin Heidelberg 2007.

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Hiroe, A. (2007). Blind vector deconvolution: Convolutive mixture models in short-time fourier transform domain. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 4666 LNCS, pp. 471–479). Springer Verlag. https://doi.org/10.1007/978-3-540-74494-8_59

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