OSMoSIS: Interactive Sound Generation System for Children with Autism Abstract This paper reports on the design and pilot evaluation of a system that uses movement, music and sounds to support playful interactions for children with Autism Spectrum Conditions (ASC). OSMoSIS (Observation of Social Motor Synchrony with an Interactive System) is a musical motion-based game. The design was inspired by previous research that suggests that music and movement can be helpful in fostering communication and expression skills, and the first author’s experiences as a music therapist. OSMoSIS converts movements into sounds, using a Microsoft Kinect-based system which provides full body tracking. A recently conducted evaluation with a group of 11 children with autism aged 5– 11 years old showed positive engagement with the system, and some instances of imaginative play. In our discussion, we highlight implications for the design of future music and movement systems to support learning in children with autism. Author Keywords Autism; movement; music; motion based touchless interaction; data analysis; log data; interaction. CSS Concepts • Human-centered computing: Human~computer interaction (HCI)~Interaction techniques~Gestural Grazia Ragone University of Sussex Brighton, UK G.Ragone@sussex.ac.uk Katherine Howland University of Sussex Brighton, UK K.L.Howland@sussex.ac.uk Judith Good University of Sussex Brighton, UK J.Good@sussex.ac.uk Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third- party components of this work must be honored. For all other uses, contact the owner/author(s). IDC 2020 Extended Abstracts, June 21–24, 2020, London, United Kingdom. © 2020 Copyright is held by the owner/author(s). ACM ISBN 978-1-4503-8020-1/20/06. DOI: https://doi.org/10.1145/3397617.3397838