Description of acoustic variations by hidden Markov models with tree structure

This research was sponsored in part by U S WEST and in part by the Defense Advanced Research Projects Agency (DOD), and monitored by the Space and Naval Warfare Systems Command under Contract N0003985-C-0163, ARPA Order No. 5167. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of U S WEST, DARPA or the US government. K e y w o r d s : HMM(Hidden Markov Model), Binary-Tree Vector Quantization, Decision Tree Clustering, CART, Speaker Clustering, Smoothing.

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