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Wiener filter for Noise Reduction and speech enhancement

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important script information
company name:
Pascal Scalart
license: Free
minimum requirements: MATLAB 7.6 (R2008a)
functional limitations:
Wiener filter for Noise Reduction and speech enhancement description


The two-step noise reduction (TSNR) technique removes the annoying reverberation effect while maintaining the benefits of the decision-directed approach. However, classic short-time noise reduction techniques, including TSNR, introduce harmonic distortion in the enhanced speech. To overcome this problem, a method called harmonic regeneration noise reduction (HRNR) is implemented in order to refine the a priori SNR used to compute a spectral gain able to preserve the speech harmonics as proposed by Plapous et al.("Improved Signal-to-Noise Ratio Estimation for Speech Enhancement", IEEE Transactions on ASLP, Vol. 14, Issue 6, pp. 2098 - 2108, Nov. 2006).



Relates:
Order - Transactions - Issue - Speech - Method - Problem - Ratio - Compute - Refine - Regeneration - Called - Estimation - Preserve - Implemented - Priori - Spectral - Harmonics - Enhancementquot - Proposed - Plapous
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Macintosh
Win All, BSD, Solaris
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downloads 23
version 1.0
size in Kb 10
popularity   
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user rating 5/10
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