Emotion Identification Using Extremely Low Frequency Components of Speech Feature Contours

Table 2

Adopted statistical analysis features after feature selection.

Statistical analysis feature set	Dim.
Silence ratio	1
Voiced ratio	1
Mean and standard deviation of pitch	2
Mean and standard deviation of log frame energy	2
Mean and standard deviation of subband powers	8
Mean and standard deviation of spectral centroid	2
Mean and standard deviation of bandwidth	2
Mean and standard deviation of MFCCs	26