4th International Conference on Spoken Language Processing
Philadelphia, PA, USA
JANUS-II is a research system for investigating various issues in speech-to-speech translations and has been implemented for speech-to-speech translations on many languages . In this paper, we address the Spanish speech recognition part of JANUS-II. First, we report the bootstrap and optimization of the recognition system. Then we investigate the difference between push-to-talk and cross-talk dialogs, which are two different kinds of data in our database. We give a detail noise analysis for the push-to-talk and cross-talk dialogs and present some recognition results for the comparison. We have observed that the cross-talk dialogs are harder than the push-to-talk dialogs for speech recognition, because they are more noisy than the latter. Currently, the error rate of our Spanish recognizer is 27% for push-to-talk test set and 32% for cross-talk test set.
Bibliographic reference. Zhan, Puming / Ries, Klaus / Gavaldą, Marsal / Gates, Donna / Lavie, Alon / Waibel, Alex (1996): "JANUS-II: towards spontaneous Spanish speech recognition", In ICSLP-1996, 2285-2288.