TABLE 1.

The comparison results of different methods.

Methods	Random division recognition task				No-leakage division recognition task
	Accuracy (%)	Recall (%)	Precision (%)	F1 Score (%)	Accuracy (%)	Recall (%)	Precision (%)	F1 Score (%)
Mel-spectrogram + CNN	98.18	99.18	99.28	99.23	95.18	93.33	100	96.55
Mel-spectrogram + BP	94.34	87.50	100	93.33	91.44	93.75	93.75	93.75
MFCC + CNN	97.43	88.88	100	94.12	94.04	100	88.88	94.11
MFCC + BP	96.12	97.19	93.87	97.19	93.45	90.91	100	95.23
MFCC + SVM	95.76	96.99	94.57	95.77	93.29	93.56	91.79	92.67
MFCC + K-means	52.93	42.86	53.09	47.43	50.34	42.44	44.96	43.66
MFCC + Naive-bayes	88.57	95.31	83.83	89.20	78.81	82.43	73.87	77.92
MFCC + LightGBM	95.73	98.46	93.29	95.80	89.89	88.17	89.38	88.77