: 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.
If you are looking for a high-quality academic source on the "audio effect" of a child's scream (how it is structured and why it affects us), the most relevant paper is the 2015 study published in titled "Human Screams Occupy a Privileged Niche in the Communication Soundscape," which explores an acoustic property called "roughness". Key Scientific Insights from the Research efect_audio_tipat_de_copil
: Research available on PubMed examines how unique cry melodies can act as markers for neurological health in infants. : Researchers found that screams differ from normal
The study of "child scream" audio effects generally falls into three categories: Key Scientific Insights from the Research : Research
: A review in Frontiers in Neuroscience explains how laryngeal tension and "roughness" associate directly with a newborn's distress levels.
: A study in Nature Scientific Reports discusses how neural networks unravel these acoustic features to predict developmental traits.