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Single Channel Source Separation Using Filterbank and 2D Sparse Matrix Factorization

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DOI: 10.4236/jsip.2013.42026    3,665 Downloads   5,471 Views   Citations

ABSTRACT

We present a novel approach to solve the problem of single channel source separation (SCSS) based on filterbank technique and sparse non-negative matrix two dimensional deconvolution (SNMF2D). The proposed approach does not require training information of the sources and therefore, it is highly suited for practicality of SCSS. The major problem of most existing SCSS algorithms lies in their inability to resolve the mixing ambiguity in the single channel observation. Our proposed approach tackles this difficult problem by using filterbank which decomposes the mixed signal into sub-band domain. This will result the mixture in sub-band domain to be more separable. By incorporating SNMF2D algorithm, the spectral-temporal structure of the sources can be obtained more accurately. Real time test has been conducted and it is shown that the proposed method gives high quality source separation performance.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

X. Lu, B. Gao, L. Khor, W. Woo, S. Dlay, W. Ling and C. Chin, "Single Channel Source Separation Using Filterbank and 2D Sparse Matrix Factorization," Journal of Signal and Information Processing, Vol. 4 No. 2, 2013, pp. 186-196. doi: 10.4236/jsip.2013.42026.

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