Machine Learning Based Automated Speech Dialog Analysis Of Autistic Children

Anjana Wijesinghe, Pradeepa Samarasinghe, Sudarshi Seneviratne, Y Pratheepan, Koliya Pulasinghe

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Citations (Scopus)
441 Downloads (Pure)


Children with autism spectrum disorder (ASD) have altered behaviors in communication, social interaction, and activity, out of which communication has been the most prominent disorder among many. Despite the recent technological advances, limited attention has been given to screening and diagnosing ASD by identifying the speech deficiencies (SD) of autistic children
at early stages. This research focuses on bridging the gap in ASD screening by developing an automated system to distinguish autistic traits through speech analysis. Data was collected from 40 participants for the initial analysis and recordings were obtained from 17 participants. We considered a three-stage processing system; first stage utilizes thresholding for silence detection and
Vocal Activity Detection for vocal isolation, second stage adopts machine learning technique neural network with frequency domain representations in developing a reliant utterance classifier for the isolated vocals and stage three also adopts machine learning technique neural network in recognizing autistic traits in speech patterns of the classified utterances. The results are promising in identifying SD of autistic children with the utterance classifier having 78% accuracy and pattern recognition 72% accuracy.
Original languageEnglish
Title of host publicationProceedings of 2019 11th International Conference on Knowledge and Systems Engineering, KSE 2019
EditorsJosiane Mothe, Le Hoang Son, Nguyen Tran Quoc Vinh
Place of PublicationDa Nang, Vietnam, Vietnam
Number of pages5
ISBN (Electronic)978-1-7281-3003-3
ISBN (Print)978-1-7281-3004-0
Publication statusPublished (in print/issue) - 24 Oct 2019


  • Audio Classification
  • Autism Screening
  • Neural Networks
  • Speech Deficiencies
  • Speech Pattern Recognition


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