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Correlating ASR Errors with Developmental Changes in Speech Production: A Study of 3-10-Year-Old European Portuguese Children's Speech

Hämäläinen, Annika and Candeias, Sara and Cho, Hyongsil and Meinedo, Hugo and Abad, Alberto and Pellegrini, Thomas and Tjalve, Michael and Trancoso, Isabel and Sales Dias, Miguel Correlating ASR Errors with Developmental Changes in Speech Production: A Study of 3-10-Year-Old European Portuguese Children's Speech. (2014) In: Workshop on Child Computer Interaction - WOCCI 2014, 19 September 2014 (Singapore, Singapore).

(Document in English)

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Automatically recognising children's speech is a very difficult task. This difficulty can be attributed to the high variability in children's speech, both within and across speakers. The variability is due to developmental changes in children's anatomy, speech production skills et cetera, and manifests itself, for example, in fundamental and formant frequencies, the frequency of disfluencies, and pronunciation quality. In this paper, we report the results of acoustic and auditory analyses of 3-10-year-old European Portuguese children's speech. Furthermore, we are able to correlate some of the pronunciation error patterns revealed by our analyses - such as the truncation of consonant clusters - with the errors made by a children's speech recogniser trained on speech collected from the same age group. Other pronunciation error patterns seem to have little or no impact on speech recognition performance. In future work, we will attempt to use our findings to improve the performance of our recogniser.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-01152655
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Universidade de Coimbra (PORTUGAL)
Other partners > Instituto de Engenharia de Sistemas e Computadores - Investigação e Desenvolvimento - INESC-ID (PORTUGAL)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Instituto Universitario de Lisboa - ISCTE IUL (PORTUGAL)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Instituto de Telecomunicações - IT (PORTUGAL)
Other partners > Microsoft (USA)
Other partners > Universidade de Lisboa - ULisboa (PORTUGAL)
Other partners > University of Washington (USA)
Laboratory name:
Deposited On:22 Apr 2015 11:46

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