19 Nov
1999
Sphinx
Speech Group, CMU-SCS (rkm@cs.cmu.edu)
Viterbi Search Summary
·Instantaneous score:
how well a given HMM state matches the speech input at a given time frame
·Path: A sequence of
HMM states traversed during a given segment of input speech
·Path-score: Product
of instantaneous scores and state transition probabilities corresponding to
a given path
·Viterbi search: An
efficient lattice structure and algorithm for computing the best path score for a
given segment of input speech