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Table 9 Performance comparison of PESQ scores for different methods in the presence of pink noise

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

SNR (dB) Universal threshold WPF algorithm WTHSKL method Proposed method
15 3.13 3 2.98 3.8
10 2.46 2.62 2.82 3.4
5 2.2 2.5 2.6 3
0 2.00 2.04 2.2 2.5
-5 1.82 1.51 1.4 2.3
-10 1.45 1.59 1.2 2.114
-15 1.31 1.14 1 1.8