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Table 9 Confusion matrix for the best valence result, three levels of valence (negative (neg.), neutral (neut.), and positive (pos.)); top, classified as; left, ground truth emotion label

From: Emotion in the singing voice—a deeperlook at acoustic features in the light ofautomatic classification

# Neg. Neut. Pos.
Low 79 5 53
Mid 10 26 12
High 50 11 54