Second Language Studies: Acquisition, Learning, Education and Technology

Tokyo, Japan
September 22-24, 2010

Automatic Assessment of Non-Native Prosody

Florian Hönig, Anton Batliner

Pattern Recognition Lab, Universität Erlangen-Nürnberg, Germany

Non-native prosodic, especially rhythmic traits are a main source for low intelligibility of the speech of nonnative L2 speakers of English - and any other language. Thus, they should be addressed in CAPT applications. To this aim, we present a demonstrator that uses a comprehensive set of prosodic features and linear regression to automatically assess the quality of the learner's productions with respect to intonation and rhythm. The system is trained with annotations obtained from 60 American and British natives, and surpasses the average performance of a single human rater.

Bibliographic reference.  Hönig, Florian / Batliner, Anton (2010): "Automatic assessment of non-native prosody", In L2WS-2010, paper D1-5 (abstrract).