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Table 6 Confusion matrix for HMM-based system using formant parameter contours (MP), ν i = m F 1 i , m F 2 i , m F 3 i , m A 1 i , m A 2 i , m A 3 i (overall accuracy 45.0%)

From: On the use of speech parameter contours for emotion recognition

  Neutral (%) Anger (%) Sad (%) Happy (%) Bored (%)
Neutral 42.6 4.3 25.5 14.9 12.8
Anger 0 66.2 8.5 16.9 8.5
Sad 6.6 8.2 37.7 11.5 36.1
Happy 8.2 19.2 19.2 37.0 16.4
Bored 3.9 7.8 29.9 18.2 40.3