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robust PMVDR features with built-in vocal tract length normalization, and a
proto-type dialogue interface via the WWW. We also discussed our speech
data corpus development based on Phase I: In-Vehicle Acoustic Noise
measurements and Phase II: speech/speaker dialogue collection. Clearly, a
number of challenges exist in the development and integration of a natural
interactive system in such diverse and changing acoustic conditions. We
believe that the processing tasks and results presented reflect useful steps in
both the formulation of the CU-Move speech system, as well as contributing
to a better scientific understanding of how to formulate dialogue systems in
such adverse conditions. Finally, while the prospect of natural hands-free
dialog within car environments is a challenging task, we feel that true
fundamental advances will only occur if each of the processing phases are
capable of sharing knowledge and leveraging their individual contributions to
achieve a reliable overall working system.
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