Analysis of the Impact Using Pre-emphasis Filter, Unvoiced Sounds, Frame Size and Feature Vector Size on Human Emotion Recognition by Voice and Machine Learning. - Alain Manzo-Martinez; Raydesel Sánchez; Fernando Gaxiola 001; Fernando Martínez-Reyes; Raymundo Cornejo Garcia (New Horizons for Fuzzy Logic, Neural Networks and Metaheuristics, 2024)