Springer Handbook of Speech Processing
Springer Handbook of Speech Processing
PEAKS - A system for the automatic evaluation of voice and speech disorders
Speech Communication
Advances in children's speech recognition within an interactive literacy tutor
HLT-NAACL-Short '04 Proceedings of HLT-NAACL 2004: Short Papers
Analysis of verbal and nonverbal acoustic signals with the dresden UASR system
COST 2102'07 Proceedings of the 2007 COST action 2102 international conference on Verbal and nonverbal communication behaviours
Pronunciation learning and foreign accent reduction by an audiovisual feedback system
ACII'05 Proceedings of the First international conference on Affective Computing and Intelligent Interaction
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This contribution describes the robustness evaluation and optimization steps for a speech interface which is suitable for embedded language tutoring with special focus on children's speech. The baseline algorithms are derived from the pronunciation tutoring system AzAR directed to adult learners of German. The first prototype LiSA (2008) - directed to young children starting at 3 years - is currently evaluated and optimized, mainly addressing following issues: (a) the challenge of ASR-based pronunciation assessment for children's speech, (b) the handling of noise and reverberation in an embedded application scenario, and (c) the extraction of additional information such as age or gender. The article summarizes evaluation results of the speech recognizer in laboratory and real-world room environment.