Table 4 The mean SNR, PESQ, and IS values obtained from enhancing 24 noisy male and female speech samples at our experiments for the proposed method compared to the other methods for various SNRs.

Input SNR

0

5

10

0

5

10

In

−1

2.4

6.2

−1.2

1.56

4.49

The initial

3.7

6

8.1

1.7

3.94

5.94

The improved

5.5

6.3

6.9

6.2

7.22

8

In

−9

−6

−1

−13

−8.5

−4

The initial

−1

1.3

4.3

−6.2

−2

1.45

The improved

3

3.8

4.8

2.2

3.8

5.1

In

1.4

1.6

1.8

1.52

1.68

1.92

The initial

1.5

1.9

2.2

1.29

1.62

1.96

The improved

2

2.3

2.4

1.93

2.19

2.4

In

2.1

1.3

0.7

3.65

2.91

2.22

The initial

1.7

1.2

0.9

2.77

2.43

1.91

The improved

0.6

0.5

0.4

1.63

1.42

1.22