Table 12 Sensitivity and specificity of the sconn model for each emotion class using the mel Spectrogram, MFCC, and mel Spectrogram + MFCC features of the SAVEE dataset.

From: Stacked convolutional neural network for emotion recognition using multi feature speech analysis

Emotion Labels

Mel Spectrogram

MFCC

Mel Spectrogram + MFCC

Sensitivity

Specificity

Sensitivity

Specificity

Sensitivity

Specificity

angry

100.00%

99.16%

92.19%

98.03%

93.65%

100.00%

disgust

93.85%

99.44%

90.77%

100.00%

92.96%

99.27%

fear

96.61%

99.45%

91.53%

98.06%

95.16%

100.00%

happy

96.55%

98.62%

84.48%

97.79%

91.07%

99.29%

neutral

92.65%

99.15%

97.06%

99.72%

95.45%

98.92%

sad

92.16%

98.37%

94.12%

99.19%

95.83%

98.61%

surprised

90.91%

99.73%

89.09%

97.26%

100.00%

98.05%