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In order to improve the performance of a speech enhancement system, Plapous introduced a novel method called two-step noise reduction (TSNR) technique to refine the a priori SNR estimation of the decision-directed (DD) approach. However, the performance of this method depends on the choice of gain function. In this paper, we propose a modified approach for the a priori SNR estimation in DCT domain...
This paper investigates the time correlation between successive speech components and presents a novel speech enhancement algorithm taking into account the inter-frame dependence information in the discrete cosine transform (DCT) domain. The algorithm does not rely on any statistic model and can efficiently attain the optimal estimation of clean speech components from successive noisy speech components...
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