Acoustical Analysis of Speech of ASD Children and Typically Developing Children

The aim of this paper is to analyze difference in speech patterns of Autism Spectrum Disorder (ASD) child and typically developing child. The speech of Hindi speaking children is recorded between age 3 to 12 years. The speech corpus includes nearly 50 sessions of speech recordings from 15 children. The data is collected for special education sessions from children as per availability. These recordings are carried out in special education training room which contains toys, flash cards and things required for different activities. The recordings are carried in the presence of surrounding background noise in order to capture the natural background noise. Further, the effects of developmental changes on the speech are analyzed using pitch, formant frequencies and intensity. This research is carried out to facilitate development of systems for automatic detection of autism and intervention.