WawaSimi: Classification Techniques for Phonological Processes Identification in Children from 3 to 5 Years Old

Braulio Baldeon, Renzo Ravelli, Willy Ugarte

2022

Abstract

In the context of the pandemic we are living in, most of the interactions between kindergarten-aged children has decreased, meaning that their language development might be slowed down. Our work presents a machine learning-based method for the classification of phonological processes and a corpus with a total of 3,324 audios, being 40% of them audios with a correct pronunciation, and the remaining 60% wrong. One of the main problems encountered when trying to perform children speech recognition in Spanish, is, to the best of our knowledge, the lack of a corpus. 329 audios were collected from 20-30 years old adults and a voice conversion technique was applied in order to generate the required audios for the corpus construction. A modified AlexNet was trained to classify if a word was correctly pronounced, if the audio was classified as mispronounced, it goes through a second AlexNet to classify which kind of Phonological Process is found in the word.

Paper Citation

in Harvard Style

Baldeon B., Ravelli R. and Ugarte W. (2022). WawaSimi: Classification Techniques for Phonological Processes Identification in Children from 3 to 5 Years Old. In Proceedings of the 14th International Conference on Computer Supported Education - Volume 2: CSEDU, ISBN 978-989-758-562-3, pages 147-154. DOI: 10.5220/0010991300003182

in Bibtex Style

@conference{csedu22,
author={Braulio Baldeon and Renzo Ravelli and Willy Ugarte},
title={WawaSimi: Classification Techniques for Phonological Processes Identification in Children from 3 to 5 Years Old},
booktitle={Proceedings of the 14th International Conference on Computer Supported Education - Volume 2: CSEDU,},
year={2022},
pages={147-154},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010991300003182},
isbn={978-989-758-562-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 14th International Conference on Computer Supported Education - Volume 2: CSEDU,
TI - WawaSimi: Classification Techniques for Phonological Processes Identification in Children from 3 to 5 Years Old
SN - 978-989-758-562-3
AU - Baldeon B.
AU - Ravelli R.
AU - Ugarte W.
PY - 2022
SP - 147
EP - 154
DO - 10.5220/0010991300003182