Wavelet- Based Speech Enhancement Using Nonlinear Envelope Expansion method
نویسندگان
چکیده
In this paper we propose a speech enhancement method based on using the wavelets theory and the envelope expansion technique. The proposed method does not require an explicit estimation of the noise level or of the a priori knowledge of the SNR, which is usually needed in most of enhancement methods. Performance of the proposed method was evaluated on speech recorded in real conditions and with artificially added noise one. We combined the wavelet packet with the envelope expansion technique, which give yield a promising approach in the speech enhancement way.
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