Rhythm patterns play an important role in the perception of second-language (L2) speech. This paper presents a novel approach to evaluating L2 speech rhythm using low-frequency spectral features inspired by the rhythmogram auditory model. In this paper we investigate several new feature sets for use in training rhythm-centric acoustic models. By capturing information over suprasegmental linguistic units appropriate for rhythmic analysis (including syllables and prosodic feet), these novel features can outperform traditional features in detecting rhythm errors on the ISLE corpus of learner English by 5.15% absolute.
Bibliographic reference. Jin, Jin / Tepperman, Joseph (2013): "Rhythm analysis of second-language speech through low-frequency auditory features", In INTERSPEECH-2013, 1836-1839.