Joint source separation and dereverberation using constrained spectral divergence optimization
A novel method for joint source separation and dereverberation in an NMF framework is proposed. The method uses constrained spectral divergence minimization by imposing non-negative constraints on sub-band envelopes. The group delay spectrum is utilized for source separation and dereverberation. Accurate NMF decompositions are obtained due to the robustness and high spectral resolution of the group delay spectrum.
source separation and dereverberation divergence minimization group delay function subband envelope