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Existing speech enhancement methods can improve speech quality but not speech intelligibility, especially in low SNR conditions. To solve this problem, an algorithm for improving speech intelligibility using the Constraints on Speech Distortion and Noise Over-estimation (CSDNO) is proposed in this paper. Based on the fact that the attenuation distortion and amplification distortion have different...
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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