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Table 3 Individual classification accuracy of different features

From: Semi-supervised feature selection for audio classification based on constraint compensated Laplacian score

Feature

Dimensional

Accuracy

Mean

STD

Mean and STD

Zero-crossing rate

1

73.73

74.86

75.10

Short-term energy

1

45.81

46.03

69.41

Energy entropy

1

71.86

69.10

74.99

Spectral centroid

2

79.19

74.49

84.79

Spectral entropy

1

69.33

74.27

76.86

Spectral flux

1

79.21

69.09

77.86

Spectral roll-off

1

71.80

74.20

74.13

MFCCs

13

84.26

86.44

87.66

Harmonic

2

69.99

82.90

83.13

Chroma vector

12

83.49

83.87

83.73

All

35

81.07

85.97

86.04

  1. Best results of each experiment are set in bold