Novlene Zoghlami

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This paper presents a new speech enhancement approach for noise reduction based on non-uniform multi-band analysis. The noisy signal is divided into a number of sub-bands using a gammatone filterbank with non-linear ERB resolution, and the sub-bands signals are individually weighted according the power spectral subtraction technique and the Ephraim and(More)
This paper introduces a new perceptual speech enhancement method based on an improved Wiener filter. The classic noise reduction techniques, including the Wiener filter, introduce musical noise and distortions that remains in the enhanced speech signal, which consequently affects the perceptual appearance. Since the spectrum of speech signal is not affected(More)
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