Influence on Spectral Energy Distribution of Emotional Expression

The expression of emotion impacts the spectral energy distribution. On the one hand emotional states characterized by a breathy voice quality such as tenderness, sadness, and eroticism present a low harmonic energy above 1 kHz, high glottal noise energy, and more energy on F0 than overtones. On the other hand, emotional states such as joy, anger, and fear are characterized by high harmonic energy greater than 1 kHz (less steep spectral slope declination), low glottal noise energy, and more energy on the F1 than F0 region.