Table 1 Comparison of SIR (in dB) of the reconstructed rhythmic signal and harmonic signal based on NMF, BNMF, GNMF, BGS-NMF-LP and BGS-NMF-LSM

Music 1

6.47

4.17

6.33

4.29

9.19

6.10

9.61

8.32

9.86

8.63

Music 2

6.30

1.10

8.08

5.18

8.22

3.03

8.33

7.13

8.55

7.45

Music 3

3.89

-1.11

5.16

3.80

6.01

3.22

8.44

8.52

8.63

8.79

Music 4

2.66

6.03

3.28

6.28

3.59

8.36

7.97

9.52

8.20

9.78

Music 5

1.85

3.71

3.03

2.55

3.97

6.44

8.11

8.22

8.35

8.50

Music 6

1.06

6.37

3.34

5.56

2.78

7.10

5.00

6.93

5.19

7.23

Average

3.71

3.38

4.87

4.61

5.63

5.71

7.91

8.11

8.13

8.40