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Communication Dans Un Congrès Année : 2005

Underdetermined blind source separation of audio sources in time-frequency domain

Résumé

This paper considers the blind separation of audio sources in the underdetermined case, where we have more sources than sensors. A recent algorithm applies time-frequency distributions (TFDs) to this problem and gives good separation performance in the case where sources are disjoint in the time-frequency (TF) plane. However, in the non-disjoint case, the reconstruction of the signals requires some interpolation at the intersection points in the TF plane. In this paper, we propose a new algorithm that combines the abovementioned method with subspace projection in order to explicitly treat non-disjoint sources. Another contribution of this paper is the estimation of the mixing matrix in the underdetermined case.
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Dates et versions

hal-02339342 , version 1 (30-10-2019)

Identifiants

  • HAL Id : hal-02339342 , version 1

Citer

Abdeldjalil Aissa El Bey, Karim Abed-Meraim, Yves Grenier. Underdetermined blind source separation of audio sources in time-frequency domain. SPAR 2005 : Signal Processing with Adaptative Sparse Structured Representations, November 16-18, Rennes, France, Nov 2005, Rennes, France. ⟨hal-02339342⟩

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