From: Speech enhancement by LSTM-based noise suppression followed by CNN-based speech restoration
SNR | Method | PESQ | STOI | SNRI |
---|---|---|---|---|
−5 | Noisy | 1.40 | 0.55 | 0.00 |
 | MMSE-LSA | 1.39 | 0.51 | 3.01 |
 | SG-jMAP | 1.38 | 0.51 | 4.13 |
 | LSTM-IRM | 1.60 | 0.63 | 9.42 |
 | LSTM-MSA | 1.62 | 0.65 | 11.05 |
 | LSTM-cMSA | 1.57 | 0.64 | 13.65 |
 | CED-cSA-du | 1.55 | 0.67 | 11.59 |
 | LSTM-cMSA + DNN-cSA | 1.57 | 0.67 | 14.85 |
 | LSTM-cMSA + CED-cSA-du | 1.59 | 0.69 | 14.98 |
 | LSTM-cMSA + CED-cSA-tr | 1.59 | 0.69 | 15.15 |
0 | Noisy | 1.59 | 0.68 | 0.00 |
 | MMSE-LSA | 1.65 | 0.65 | 3.74 |
 | SG-jMAP | 1.64 | 0.65 | 4.47 |
 | LSTM-IRM | 1.95 | 0.78 | 13.44 |
 | LSTM-MSA | 2.01 | 0.80 | 14.96 |
 | LSTM-cMSA | 1.98 | 0.80 | 19.12 |
 | CED-cSA-du | 1.89 | 0.82 | 16.33 |
 | LSTM-cMSA + DNN-cSA | 1.99 | 0.83 | 20.94 |
 | LSTM-cMSA + CED-cSA-du | 2.04 | 0.85 | 20.94 |
 | LSTM-cMSA + CED-cSA-tr | 2.05 | 0.85 | 21.27 |
5 | Noisy | 1.86 | 0.80 | 0.00 |
 | MMSE-LSA | 1.98 | 0.77 | 4.41 |
 | SG-jMAP | 1.98 | 0.78 | 5.35 |
 | LSTM-IRM | 2.39 | 0.88 | 15.70 |
 | LSTM-MSA | 2.48 | 0.89 | 17.35 |
 | LSTM-cMSA | 2.49 | 0.89 | 22.07 |
 | CED-cSA-du | 2.39 | 0.91 | 19.73 |
 | LSTM-cMSA + DNN-cSA | 2.53 | 0.91 | 24.45 |
 | LSTM-cMSA + CED-cSA-du | 2.61 | 0.92 | 24.11 |
 | LSTM-cMSA + CED-cSA-tr | 2.63 | 0.93 | 24.71 |
10 | Noisy | 2.22 | 0.89 | 0.00 |
 | MMSE-LSA | 2.37 | 0.86 | 4.85 |
 | SG-jMAP | 2.40 | 0.87 | 6.06 |
 | LSTM-IRM | 2.84 | 0.93 | 16.58 |
 | LSTM-MSA | 2.93 | 0.94 | 18.20 |
 | LSTM-cMSA | 2.97 | 0.94 | 23.19 |
 | CED-cSA-du | 2.96 | 0.95 | 23.40 |
 | LSTM-cMSA + DNN-cSA | 3.03 | 0.95 | 25.88 |
 | LSTM-cMSA + CED-cSA-du | 3.12 | 0.96 | 25.11 |
 | LSTM-cMSA + CED-cSA-tr | 3.15 | 0.96 | 26.06 |
15 | Noisy | 2.65 | 0.95 | 0.00 |
 | MMSE-LSA | 2.77 | 0.92 | 4.88 |
 | SG-jMAP | 2.86 | 0.93 | 6.36 |
 | LSTM-IRM | 3.27 | 0.97 | 15.76 |
 | LSTM-MSA | 3.35 | 0.97 | 17.92 |
 | LSTM-cMSA | 3.39 | 0.97 | 22.66 |
 | CED-cSA-du | 3.44 | 0.97 | 25.69 |
 | LSTM-cMSA + DNN-cSA | 3.41 | 0.97 | 25.42 |
 | LSTM-cMSA + CED-cSA-du | 3.50 | 0.97 | 24.24 |
 | LSTM-cMSA + CED-cSA-tr | 3.54 | 0.98 | 25.55 |
Mean | Noisy | 1.94 | 0.77 | 0.00 |
 | MMSE-LSA | 2.03 | 0.74 | 4.18 |
 | SG-jMAP | 2.05 | 0.75 | 5.27 |
 | LSTM-IRM | 2.41 | 0.84 | 14.19 |
 | LSTM-MSA | 2.48 | 0.85 | 18.12 |
 | LSTM-cMSA | 2.48 | 0.85 | 20.14 |
 | CED-cSA-du | 2.44 | 0.86 | 19.35 |
 | LSTM-cMSA + DNN-cSA | 2.51 | 0.87 | 22.30 |
 | LSTM-cMSA + CED-cSA-du | 2.57 | 0.88 | 21.88 |
 | LSTM-cMSA + CED-cSA-tr | 2.59 | 0.88 | 22.54 |
 | LSTM-cMSA + CLED-cSA-du [39] | 2.62 | 0.89 | 22.47 |