Table 7 Average PESQ scores of compared methods for noisy and enhanced speech under various SNR conditions

Unprocessed

1.36

1.57

1.82

2.23

2.73

3.22

-

1.42

1.68

1.97

2.44

2.98

3.47

-

CRN

1.74

2.06

2.32

2.65

2.95

3.23

0.33

1.84

2.20

2.49

2.85

3.17

3.45

0.34

MSTCN

1.77

2.14

2.46

2.87

3.27

3.60

0.53

1.86

2.26

2.62

3.07

3.49

3.83

0.53

LSTM-IRM

1.99

2.38

2.71

3.11

3.46

3.75

0.74

2.12

2.56

2.90

3.34

3.71

4.00

0.78

GCRN

1.98

2.34

2.62

2.93

3.20

3.42

0.59

2.04

2.44

2.76

3.13

3.42

3.65

0.60

GaGNet

1.93

2.30

2.59

2.94

3.23

3.49

0.59

2.03

2.44

2.76

3.14

3.47

3.74

0.60

Conv-TasNet

2.13

2.52

2.81

3.15

3.46

3.70

0.80

2.17

2.58

2.92

3.32

3.65

3.91

0.76

DCCRN

2.16

2.59

2.92

3.29

3.59

3.85

0.91

2.24

2.70

3.07

3.48

3.81

4.06

0.90

DPCRN

2.17

2.58

2.89

3.24

3.54

3.79

0.88

2.37

2.83

3.18

3.56

3.87

4.10

0.99

SA-MSTCN\(^{1}\)

2.40

2.84

3.15

3.49

3.77

3.98

1.11

2.63

3.10

3.40

3.75

4.01

4.21

1.19

SA-MSTCN\(^{2}\)

2.43

2.87

3.18

3.51

3.78

3.99

1.13

2.63

3.10

3.43

3.77

4.03

4.22

1.20