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Table 3 Performance comparison in terms of PESQ scores in the presence of white noise

From: A semisoft thresholding method based on Teager energy operation on wavelet packet coefficients for enhancing noisy speech

SNR (dB) MMSE Spectral subtraction Wiener filtering Proposed method
15 3.21 3.1 2.9 3.2374
10 2.89 2.51 2.33 2.9
5 2.4 2.2 2 2.733
0 2.1 1.82 1.68 2.47
-5 1.85 1.54 1.36 2.2
-10 2 1.4 1.31 2
-15 1.42 1.35 1.28 1.8