Recognition of Emotions in Mexican Spanish Speech: An Approach Based on Acoustic Modelling of Emotion-Specific Vowels

Table 6

Emotion-specific vowels in the emotional stimuli.

Emotion	Vowel/phoneme	Frequency
Anger	a_e	31
	e_e	28
	i_e	11
	o_e	9
	u_e	6
Happiness	a_f	41
	e_f	28
	i_f	18
	o_f	12
	u_f	4
Neutral	a_n	38
	e_n	32
	i_n	7
	o_n	14
	u_n	10
Sadness	a_t	32
	e_t	42
	i_t	26
	o_t	34
	u_t	4