: A review in Frontiers in Neuroscience explains how laryngeal tension and "roughness" associate directly with a newborn's distress levels.
: Researchers found that screams differ from normal speech not just by volume or pitch, but by a quality called roughness . This refers to rapid changes in volume (between 30 and 150 Hz) that target the amygdala, the brain's fear center, to trigger an immediate alarm response. efect_audio_tipat_de_copil
The study of "child scream" audio effects generally falls into three categories: : A review in Frontiers in Neuroscience explains