Table 5 Neutral emotion: the different acoustic features between depressed and healthy people under different tasks

loudness

0.37 ± 0.17

0.17 ± 0.17

27.22^***

.22

0.38 ± 0.16

0.17 ± 0.17

26.13^***

.21

0.49 ± 0.21

0.24 ± 0.24

21.20^***

.18

0.34 ± 0.13

0.17 ± 0.17

22.20^***

.18

mfcc1

0.06 ± 3.79

0.97 ± 3.63

1.86

.02

0.09 ± 3.45

0.57 ± 3.63

0.92

.01

1.16 ± 3.24

1.63 ± 2.86

0.83

.01

−0.46 ± 3.16

1.02 ± 3.22

7.16^**

.07

mfcc2

8.62 ± 2.96

9.22 ± 3

0.79

.01

8.75 ± 2.73

9.45 ± 2.83

1.08

.01

8.37 ± 3.44

10.93 ± 4.02

11.05^***

.10

8.35 ± 2.5

8.99 ± 2.25

1.75

.02

mfcc3

7.33 ± 4.78

3.8 ± 3.39

15.82^***

.14

8.09 ± 4.57

3.34 ± 3.49

29.18^***

.23

7.52 ± 5.94

2.46 ± 4.6

21.24^***

.18

7.32 ± 3.83

4.08 ± 3.08

17.81^***

.15

mfcc4

6.29 ± 4.65

3.84 ± 4.24

8.64^**

.08

5.09 ± 4.32

2.98 ± 4.46

5.83^*

.06

−0.46 ± 6.69

− 2.1 ± 6.39

0.87

.01

6.21 ± 3.53

3.93 ± 3.96

7.44^**

.07

mfcc5

2.35 ± 6.43

−4.5 ± 6.77

24.71^***

.20

1.77 ± 5.49

−5.83 ± 7.31

31.73^***

.24

−3.6 ± 5.9

− 12.42 ± 8.17

28.81^***

.23

3.32 ± 5.21

− 3.2 ± 4.83

34.84^***

.26

mfcc6

4.09 ± 6.64

6.16 ± 6.28

0.83

.01

3.54 ± 5.64

5.5 ± 6.7

0.63

.01

0.34 ± 6.62

5.66 ± 7.66

10.12^**

.09

4.23 ± 4.42

5.55 ± 6.14

0.24

.00

mfcc7

− 0.21 ± 6.08

− 7.21 ± 4.63

40.80^***

.29

−1 ± 5.28

− 8.08 ± 4.45

49.00^***

.33

−3.81 ± 5.68

− 11.79 ± 4.65

51.12^***

.34

− 0.31 ± 4.3

− 7.06 ± 3.59

64.20^***

.39

mfcc8

1.85 ± 5.25

1.97 ± 4.73

0.01

.00

0.35 ± 5.82

1.73 ± 4.65

1.86

.02

−2.78 ± 7.51

− 1.11 ± 5.86

2.25

.02

1.96 ± 3.86

1.85 ± 3.26

0.14

.00

mfcc9

0.16 ± 5.01

2.66 ± 3.95

5.91^*

.06

− 0.59 ± 5.51

1.67 ± 4.05

3.78

.04

−3.27 ± 5.9

− 0.37 ± 4.72

6.10^*

.06

0.57 ± 4.18

2.4 ± 3.19

3.62

.04

mfcc10

1.9 ± 5.7

0.59 ± 5.51

2.01

.02

1.44 ± 5.59

0.06 ± 4.63

3.57

.03

−0.44 ± 6.94

− 2.64 ± 6.22

2.19

.02

1.95 ± 5.04

1.47 ± 4.11

0.41

.00

mfcc11

− 0.08 ± 4.46

−0.8 ± 4.46

1.75

.02

− 0.49 ± 4.59

−0.54 ± 3.86

0.34

.00

−1.55 ± 6.06

− 2.2 ± 5.16

0.20

.00

−0.51 ± 3.43

0.19 ± 3.38

0.28

.00

mfcc12

−2.2 ± 3.68

−1.1 ± 3.2

0.95

.01

− 1.83 ± 3.75

−1.75 ± 3.16

0.11

.00

−3.23 ± 4.41

−3.47 ± 3.21

0.80

.01

−2 ± 2.8

−1.08 ± 2.11

1.10

.01

lsp0

0.19 ± 0.04

0.2 ± 0.04

0.77

.01

0.2 ± 0.03

0.21 ± 0.04

1.68

.02

0.2 ± 0.03

0.2 ± 0.02

0.06

.00

0.2 ± 0.03

0.2 ± 0.03

0.33

.00

lsp1

0.62 ± 0.05

0.62 ± 0.07

0.05

.00

0.61 ± 0.05

0.61 ± 0.06

0.71

.01

0.56 ± 0.04

0.57 ± 0.04

2.22

.02

0.63 ± 0.05

0.61 ± 0.05

3.94

.04

lsp2

0.98 ± 0.06

0.99 ± 0.06

0.33

.00

0.97 ± 0.06

0.98 ± 0.05

0.22

.00

0.91 ± 0.07

0.95 ± 0.05

8.00^**

.08

0.99 ± 0.05

0.98 ± 0.05

1.13

.01

lsp3

1.34 ± 0.07

1.3 ± 0.09

5.06^*

.05

1.34 ± 0.07

1.28 ± 0.09

9.67^**

.09

1.27 ± 0.07

1.23 ± 0.08

2.58

.03

1.35 ± 0.06

1.3 ± 0.07

13.91^***

.12

lsp4

1.67 ± 0.07

1.61 ± 0.1

10.99^***

.10

1.66 ± 0.07

1.59 ± 0.11

15.73^***

.14

1.6 ± 0.08

1.52 ± 0.1

14.48^***

.13

1.68 ± 0.06

1.61 ± 0.08

18.67^***

.16

lsp5

2.0 ± 0.07

1.95 ± 0.11

5.46^*

.05

2.0 ± 0.06

1.94 ± 0.12

7.88^**

.07

1.94 ± 0.07

1.88 ± 0.1

7.76^**

.07

2.01 ± 0.05

1.96 ± 0.1

9.47^**

.09

lsp6

2.37 ± 0.06

2.31 ± 0.11

10.24^**

.09

2.37 ± 0.06

2.29 ± 0.12

14.31^***

.13

2.32 ± 0.07

2.22 ± 0.12

17.25^***

.15

2.38 ± 0.05

2.32 ± 0.09

15.02^***

.13

lsp7

2.72 ± 0.04

2.7 ± 0.05

5.91^*

.06

2.72 ± 0.04

2.69 ± 0.06

11.33^***

.10

2.7 ± 0.05

2.64 ± 0.07

19.24^***

.16

2.73 ± 0.03

2.7 ± 0.04

11.75^***

.11

zcr

0.03 ± 0.01

0.03 ± 0.01

6.30^*

.06

0.03 ± 0.01

0.03 ± 0.01

15.26^***

.13

0.03 ± 0.01

0.04 ± 0.01

15.01^***

.13

0.03 ± 0.01

0.03 ± 0.01

0.81

.01

vp

0.56 ± 0.07

0.52 ± 0.06

8.06^**

.08

0.56 ± 0.06

0.52 ± 0.05

9.81^**

.09

0.6 ± 0.06

0.57 ± 0.06

8.54^**

.08

0.54 ± 0.06

0.51 ± 0.05

8.18^**

.08

F0

131.82 ± 57.54

90.43 ± 38.27

13.79^***

.12

128.75 ± 46.52

93.65 ± 38.37

12.83^***

.11

144.87 ± 36.71

111.44 ± 35.54

23.83^***

.20

120.79 ± 42.4

84.84 ± 36.85

13.67^***

.12

F0env

297.16 ± 40.91

271.51 ± 45.86

8.58^**

.08

296.22 ± 40.37

269.71 ± 50.15

9.07^**

.08

267.89 ± 40.63

266.53 ± 42.48

16.56^***

.14

305.99 ± 30.86

272.83 ± 41.98

20.20^***

.17