Table 2 The LSD of the proposed algorithm and the contrast algorithm
Noise type | SNR (dB) | LSD (dB) | Noise type | SNR (dB) | LSD (dB) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
noisy speech | Contrast1 | Contrast2 | Proposed algorithm | noisy speech | Contrast1 | Contrast2 | Proposed algorithm | ||||
Buccaneer1 | 10 | 14.81 | 6.98 | 4.47 | 4.12 | hfchannel | 10 | 13.35 | 6.29 | 3.97 | 3.97 |
5 | 16.73 | 7.80 | 4.72 | 4.62 | 5 | 15.11 | 7.06 | 4.50 | 4.49 | ||
0 | 18.63 | 8.71 | 5.29 | 5.21 | 0 | 16.92 | 8.07 | 5.05 | 4.98 | ||
− 5 | 20.35 | 10.37 | 7.19 | 7.12 | − 5 | 18.54 | 8.99 | 5.95 | 5.94 | ||
Buccaneer2 | 10 | 16.43 | 7.77 | 4.95 | 4.43 | Leopard | 10 | 9.82 | 5.26 | 3.74 | 3.54 |
5 | 18.43 | 8.49 | 4.95 | 4.62 | 5 | 11.35 | 5.69 | 3.75 | 3.74 | ||
0 | 20.41 | 10.00 | 6.27 | 6.27 | 0 | 12.95 | 6.38 | 4.36 | 4.29 | ||
− 5 | 22.13 | 11.63 | 8.18 | 8.08 | − 5 | 14.54 | 8.06 | 4.98 | 5.85 | ||
Babble | 10 | 11.55 | 6.31 | 4.33 | 4.11 | m109 | 10 | 11.76 | 5.71 | 5.80 | 3.61 |
5 | 13.27 | 7.31 | 5.04 | 4.67 | 5 | 13.43 | 6.57 | 6.57 | 4.03 | ||
0 | 14.95 | 8.95 | 6.41 | 6.14 | 0 | 15.16 | 7.28 | 7.22 | 4.43 | ||
− 5 | 16.43 | 11.63 | 8.95 | 9.36 | − 5 | 16.78 | 8.20 | 8.04 | 5.24 | ||
Destroyerengine | 10 | 13.06 | 6.30 | 4.03 | 4.03 | Machinegun | 10 | 6.17 | 2.89 | 3.65 | 2.80 |
5 | 14.87 | 7.12 | 4.41 | 4.24 | 5 | 7.42 | 3.04 | 4.22 | 3.01 | ||
0 | 16.67 | 7.90 | 4.71 | 4.68 | 0 | 8.61 | 4.63 | 4.67 | 3.39 | ||
− 5 | 18.27 | 9.00 | 5.42 | 5.41 | − 5 | 9.35 | 5.32 | 5.32 | 3.96 | ||
Destroyerops | 10 | 13.47 | 6.69 | 4.32 | 3.97 | Pink | 10 | 15.13 | 7.10 | 7.04 | 4.02 |
5 | 15.39 | 7.41 | 4.68 | 4.48 | 5 | 17.05 | 7.89 | 7.76 | 4.46 | ||
0 | 17.08 | 8.39 | 5.12 | 5.08 | 0 | 18.96 | 8.97 | 8.64 | 5.06 | ||
− 5 | 18.74 | 9.76 | 7.11 | 6.66 | − 5 | 20.68 | 10.82 | 10.46 | 6.54 | ||
f16 | 10 | 13.57 | 6.42 | 3.94 | 3.88 | Volvo | 10 | 9.31 | 4.45 | 4.34 | 2.78 |
5 | 15.41 | 7.22 | 4.48 | 4.32 | 5 | 10.92 | 5.09 | 4.98 | 2.98 | ||
0 | 17.20 | 8.21 | 4.65 | 4.64 | 0 | 12.47 | 5.55 | 5.60 | 3.19 | ||
− 5 | 18.85 | 9.78 | 5.62 | 5.55 | − 5 | 13.92 | 6.12 | 6.19 | 3.57 | ||
Factory1 | 10 | 13.72 | 6.94 | 4.51 | 4.14 | White | 10 | 16.95 | 7.82 | 8.07 | 4.52 |
5 | 15.56 | 7.67 | 4.73 | 4.68 | 5 | 18.98 | 8.93 | 9.10 | 5.29 | ||
0 | 17.37 | 9.09 | 5.95 | 5.94 | 0 | 20.99 | 10.27 | 6.75 | 6.67 | ||
− 5 | 18.85 | 11.91 | 14.12 | 8.93 | − 5 | 22.80 | 11.70 | 8.60 | 8.23 | ||
Factory2 | 10 | 11.37 | 5.92 | 4.10 | 3.81 | Street | 10 | 9.92 | 7.19 | 6.75 | 5.85 |
5 | 13.01 | 6.59 | 4.55 | 4.42 | 5 | 11.46 | 9.93 | 9.23 | 8.27 | ||
0 | 14.72 | 7.72 | 5.07 | 4.99 | 0 | 13.31 | 11.78 | 10.41 | 9.69 | ||
− 5 | 16.32 | 9.25 | 6.07 | 6.07 | − 5 | 15.67 | 12.50 | 11.48 | 10.53 | ||
Office | 10 | 12.78 | 10.91 | 9.63 | 9.05 | Average | 10 | 12.54 | 6.53 | 5.16 | 4.27 |
5 | 14.85 | 13.03 | 12.73 | 11.59 | 5 | 14.30 | 7.40 | 5.79 | 4.82 | ||
0 | 16.41 | 15.14 | 14.67 | 13.48 | 0 | 16.05 | 8.51 | 6.40 | 5.67 | ||
− 5 | 17.25 | 16.03 | 15.89 | 14.43 | − 5 | 17.55 | 9.95 | 8.09 | 7.08 | ||