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Non-negative spectrogram decomposition and its variants have been extensively investigated for speech enhancement due to their efficiency in extracting perceptually meaningful components from mixtures. Usually, these approaches are implemented on the condition that training samples for one or more sources are available beforehand. However, in many real-world scenarios, it is always impossible for...
A key stage in speech enhancement is noise estimation which usually requires prior models for speech or noise or both. However, prior models can sometimes be difficult to obtain. In this paper, without any prior knowledge of speech and noise, sparse and low-rank nonnegative matrix factorization (NMF) with Kullback–Leibler divergence is proposed to noise and speech estimation by decomposing the input...
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