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An LP (Linear Prediction) spectrum modification method is proposed based on linear extrapolation for different signal to noise ratio under the white noise environment. A direct modification on the noisy LP spectrum is employed, since the autocorrelation coefficients of the original speech are not available in some practical applications. The linear suppression rule is applied into the high-frequency...
This paper addresses the problem of musical noise introduced by conventional spectral subtraction method for speech enhancement. A modified spectral subtraction algorithm based on the masking properties of human auditory system is proposed. In comparison with Virag's algorithm, the modification of proposed method is made from four aspects. Firstly, VAD (Voice Activity Detection) is substituted by...
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