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A speech signal enhancement method based on adaptive multi-resolution form of singular value decomposition (MSVD) is proposed in this paper. The residual noise after spectral subtraction, which results in audible musical noise, is reduced further by MSVD filter. In comparison with the original singular value decomposition filter (SVD), MSVD filter reduces the computational burden, which is very important...
This letter derives asymptotic formulas for the mean square error (MSE) distortion and the signal-to-noise ratio of a mismatched fixed-rate minimum MSE Laplacian quantizer. These closed-form formulas are expressed in terms of the number N of quantization points, the mean displacement, and the ratio p of the standard deviation of the source to that for which the quantizer is optimally designed. Numerical...
The new method for interpolation of intensity and period of fundamental frequency characteristics of speech signals is extensively tested when speech signal is distorted by lengthy impulsive noise or gap. The suitability of presented restoration technique is judged by evaluating quality of restored speech signal. The quality is estimated using signal to noise ratio as an objective measure and for...
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