Wiener filter for Noise Reduction and speech enhancement 1.0

Date Added: April 10, 2013 | Visits: 614

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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).

Requirements: No special requirements

Platforms: Matlab

Keyword: Called, Compute, Enhancementquot, Estimation, Harmonics, Implemented, Issue, Method, Order, Plapous, Preserve, Priori, Problem, Proposed, Ratio, Refine, Regeneration, Spectral, Speech, Transactions

Users rating: 0/10

License: Freeware

Size: 10 KB

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