Predicting human perception and ASR classification of word-final [t] by its acoustic sub-segmental properties
Schuppler, B., Ernestus, M., Van Dommelen, W., & Koreman, J.
Predicting human perception and ASR classification of word-final [t] by its acoustic sub-segmental properties. In Proceedings of the 11th Annual Conference of the International Speech Communication Association (Interspeech 2010), Makuhari, Japan
This paper presents a study on the acoustic sub-segmental properties of word-final /t/ in conversational standard Dutch and how these properties contribute to whether humans and an ASR system classify the /t/ as acoustically present or absent. In general, humans and the ASR system use the same cues (presence of a constriction, a burst, and alveolar frication), but the ASR system is also less sensitive to fine cues (weak bursts, smoothly starting friction) than human listeners and misled by the presence of glottal vibration. These data inform the further development of models of human and automatic speech processing.