Humming and singing are common vocal stimming behaviors in children with autism spectrum disorder (ASD). Stimming is a repetitive behavior that helps autistic people regulate their emotions and sensory input. WHY DO AUTISTIC KIDS HUM or SING? Self-regulation: Humming can help autistic children cope with stress, anxiety, excitement, or boredom. Sensory input: Repetitive sounds can help autistic children create a sensory experience. Expressing emotions: Humming can be a way for autistic children t