Decreased Sound Tolerance

Decreased sound tolerance (DST) is an umbrella term for conditions in which everyday sounds are perceived as uncomfortably loud, threatening, or emotionally distressing. It encompasses hyperacusis (abnormal sensitivity to sound volume), misophonia (strong emotional reactions to specific trigger sounds), and phonophobia (fear-based aversion to sounds). DST is the most common sensory difficulty experienced by autistic people, with loud, sudden, and high-pitched sounds frequently cited as causing stress, anxiety, and reduced social functioning. Understanding DST is important for designing accessible environments and assistive technologies that help individuals manage their auditory experiences.